165187056 has 40 divisors (see below), whose sum is σ = 427986000. Its totient is φ = 54900736.

The previous prime is 165187051. The next prime is 165187063. The reversal of 165187056 is 650781561.

165187056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165187051) 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, 12070 + ... + 21818.

It is an arithmetic number, because the mean of its divisors is an integer number (10699650).

Almost surely, 2^165187056 is an apocalyptic number.

165187056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

165187056 is an abundant number, since it is smaller than the sum of its proper divisors (262798944).

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

165187056 is a wasteful number, since it uses less digits than its factorization.

165187056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10113 (or 10107 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 165187056 is about 12852.5116611501. The cubic root of 165187056 is about 548.6878428221.

The spelling of 165187056 in words is "one hundred sixty-five million, one hundred eighty-seven thousand, fifty-six".