165717634080 has 48 divisors (see below), whose sum is σ = 522010548864. Its totient is φ = 44191368960.

The previous prime is 165717634067. The next prime is 165717634097. The reversal of 165717634080 is 80436717561.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 172622056 + ... + 172623015.

It is an arithmetic number, because the mean of its divisors is an integer number (10875219768).

Almost surely, 2^165717634080 is an apocalyptic number.

165717634080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165717634080 is an abundant number, since it is smaller than the sum of its proper divisors (356292914784).

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

165717634080 is a wasteful number, since it uses less digits than its factorization.

165717634080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345245089 (or 345245081 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 48.

The spelling of 165717634080 in words is "one hundred sixty-five billion, seven hundred seventeen million, six hundred thirty-four thousand, eighty".