165870788 has 24 divisors (see below), whose sum is σ = 294158592. Its totient is φ = 81831744.

The previous prime is 165870721. The next prime is 165870791. The reversal of 165870788 is 887078561.

165870788 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

165870788 is strictly pandigital in base 9.

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, 150656 + ... + 151752.

It is an arithmetic number, because the mean of its divisors is an integer number (12256608).

Almost surely, 2^165870788 is an apocalyptic number.

It is an amenable number.

165870788 is a deficient number, since it is larger than the sum of its proper divisors (128287804).

165870788 is a wasteful number, since it uses less digits than its factorization.

165870788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571 (or 1569 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 50.

The square root of 165870788 is about 12879.0833524751. The cubic root of 165870788 is about 549.4438322753.

The spelling of 165870788 in words is "one hundred sixty-five million, eight hundred seventy thousand, seven hundred eighty-eight".