165204234136 has 32 divisors (see below), whose sum is σ = 310298670000. Its totient is φ = 82458020736.

The previous prime is 165204234127. The next prime is 165204234157. The reversal of 165204234136 is 631432402561.

It is a junction number, because it is equal to n+sod(n) for n = 165204234095 and 165204234104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19974610 + ... + 19982878.

Almost surely, 2^165204234136 is an apocalyptic number.

It is an amenable number.

165204234136 is a deficient number, since it is larger than the sum of its proper divisors (145094435864).

165204234136 is a wasteful number, since it uses less digits than its factorization.

165204234136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12331 (or 12327 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

Adding to 165204234136 its reverse (631432402561), we get a palindrome (796636636697).

The spelling of 165204234136 in words is "one hundred sixty-five billion, two hundred four million, two hundred thirty-four thousand, one hundred thirty-six".