199002916136 has 8 divisors (see below), whose sum is σ = 373130467770. Its totient is φ = 99501458064.

The previous prime is 199002916127. The next prime is 199002916201. The reversal of 199002916136 is 631619200991.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 101537822500 + 97465093636 = 318650^2 + 312194^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12437682251 + ... + 12437682266.

Almost surely, 2^199002916136 is an apocalyptic number.

It is an amenable number.

199002916136 is a deficient number, since it is larger than the sum of its proper divisors (174127551634).

199002916136 is a wasteful number, since it uses less digits than its factorization.

199002916136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24875364523 (or 24875364519 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 47.

The spelling of 199002916136 in words is "one hundred ninety-nine billion, two million, nine hundred sixteen thousand, one hundred thirty-six".