165925056 has 112 divisors (see below), whose sum is σ = 482364288. Its totient is φ = 49920000.

The previous prime is 165924977. The next prime is 165925079. The reversal of 165925056 is 650529561.

It is a super-2 number, since 2×165925056² = 55062248417206272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 529956 + ... + 530268.

It is an arithmetic number, because the mean of its divisors is an integer number (4306824).

Almost surely, 2^165925056 is an apocalyptic number.

165925056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165925056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241182144).

165925056 is an abundant number, since it is smaller than the sum of its proper divisors (316439232).

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

165925056 is a wasteful number, since it uses less digits than its factorization.

165925056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590 (or 580 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 39.

The square root of 165925056 is about 12881.1900071383. The cubic root of 165925056 is about 549.5037463146.

The spelling of 165925056 in words is "one hundred sixty-five million, nine hundred twenty-five thousand, fifty-six".