could not able to install npm in ubuntu 16.04.2

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"Could not able to install following components in Ubuntu 16.04.2 version of Linux box getting error which is attached with screen shot " Trying to install NPM components in LINUX box but it getting killed in the middle

{
  "name": "legaldialapis",
  "version": "1.0.0",
  "scripts": {
    "start": "set NODE_ENV=DEV",
    "test": "mocha apis/**/test/**/*.spec.js",
    "test-watch": "nodemon --exec npm test",
    "code-cov": "nyc --reporter=lcov --reporter=text-lcov npm test",
    "eslint": "eslint **/*.js > lint-report.txt",
    "bump": "gulp bump"
  },
  "dependencies": {
    "ajv": "^4.9.2",
    "ajv-error-messages": "^1.0.0",
    "async": "^2.1.4",
    "bcryptjs": "^2.4.3",
    "body-parser": "~1.15.2",
    "bunyan": "^1.8.5",
    "cookie-parser": "~1.4.3",
    "dateformat": "^2.0.0",
    "debug": "~2.2.0",
    "express": "~4.14.0",
    "firebase": "^3.7.2",
    "firebase-admin": "^4.1.3",
    "json2yaml": "^1.1.0",
    "jsonwebtoken": "^7.2.1",
    "lodash": "^4.17.4",
    "moment": "^2.17.1",
    "mongodb": "^2.2.22",
    "mongoose": "^4.8.1",
    "mongoose-gen": "^2.1.1",
    "request": "^2.79.0",
    "serve-favicon": "~2.3.0",
    "swagger-jsdoc": "^1.8.2",
    "swagger-ui-express": "^1.0.2",
    "validator": "^6.2.1",
    "html-pdf": "2.1.0"
  },
  "devDependencies": {
    "chai": "^3.5.0",
    "chai-http": "^3.0.0",
    "del": "^2.2.2",
    "eslint": "^3.14.1",
    "eslint-config-google": "^0.7.1",
    "gulp-bump": "^2.6.1",
    "mocha": "^3.2.0",
    "nyc": "^10.0.0",
    "yargs": "^6.6.0",
    "gulp": "^3.9.1",
    "gulp-livereload": "^3.8.1",
    "gulp-mocha": "^3.0.1",
    "gulp-nodemon": "^2.2.1",
    "gulp-folders": "^1.1.0",
    "gulp-replace": "^0.5.4",
        "gulp-util": "^3.0.8"
      },
      "engines": {
        "node": ">=0.10.0"
       }
    }

via Vittal Kamkar