165113411539272 has 128 divisors (see below), whose sum is σ = 489785290997760. Its totient is φ = 45389584661760.

The previous prime is 165113411539247. The next prime is 165113411539301. The reversal of 165113411539272 is 272935114311561.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90728508 + ... + 92530475.

It is an arithmetic number, because the mean of its divisors is an integer number (3826447585920).

Almost surely, 2^{165113411539272} is an apocalyptic number.

165113411539272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

165113411539272 is an abundant number, since it is smaller than the sum of its proper divisors (324671879458488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165113411539272 is a wasteful number, since it uses less digits than its factorization.

165113411539272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183259203 (or 183259199 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 51.

The spelling of 165113411539272 in words is "one hundred sixty-five trillion, one hundred thirteen billion, four hundred eleven million, five hundred thirty-nine thousand, two hundred seventy-two".