165790000856 has 16 divisors (see below), whose sum is σ = 310930134840. Its totient is φ = 82875298240.

The previous prime is 165790000799. The next prime is 165790000897. The reversal of 165790000856 is 658000097561.

It is a self number, because there is not a number n which added to its sum of digits gives 165790000856.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2426981 + ... + 2494356.

Almost surely, 2^165790000856 is an apocalyptic number.

It is an amenable number.

165790000856 is a deficient number, since it is larger than the sum of its proper divisors (145140133984).

165790000856 is a wasteful number, since it uses less digits than its factorization.

165790000856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4925554 (or 4925550 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 47.

The spelling of 165790000856 in words is "one hundred sixty-five billion, seven hundred ninety million, eight hundred fifty-six", and thus it is an aban number.