165056562 has 64 divisors (see below), whose sum is σ = 402145920. Its totient is φ = 49766400.

The previous prime is 165056561. The next prime is 165056581. The reversal of 165056562 is 265650561.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (165056561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142578 + ... + 143730.

It is an arithmetic number, because the mean of its divisors is an integer number (6283530).

Almost surely, 2^165056562 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165056562, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201072960).

165056562 is an abundant number, since it is smaller than the sum of its proper divisors (237089358).

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

165056562 is a wasteful number, since it uses less digits than its factorization.

165056562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416 (or 1410 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 165056562 is about 12847.4340628781. The cubic root of 165056562 is about 548.5433211394.

The spelling of 165056562 in words is "one hundred sixty-five million, fifty-six thousand, five hundred sixty-two".