165116370155564 has 24 divisors (see below), whose sum is σ = 293702473587600. Its totient is φ = 81212275753920.

The previous prime is 165116370155549. The next prime is 165116370155567. The reversal of 165116370155564 is 465551073611561.

It is not an unprimeable number, because it can be changed into a prime (165116370155567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1362195767 + ... + 1362316974.

It is an arithmetic number, because the mean of its divisors is an integer number (12237603066150).

Almost surely, 2^{165116370155564} is an apocalyptic number.

It is an amenable number.

165116370155564 is a deficient number, since it is larger than the sum of its proper divisors (128586103432036).

165116370155564 is a wasteful number, since it uses less digits than its factorization.

165116370155564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2724512993 (or 2724512991 counting only the distinct ones).

The product of its (nonzero) digits is 11340000, while the sum is 56.

The spelling of 165116370155564 in words is "one hundred sixty-five trillion, one hundred sixteen billion, three hundred seventy million, one hundred fifty-five thousand, five hundred sixty-four".