165564076 has 12 divisors (see below), whose sum is σ = 290770200. Its totient is φ = 82486880.

The previous prime is 165564059. The next prime is 165564107. The reversal of 165564076 is 670465561.

It is a super-2 number, since 2×165564076² = 54822926523467552, which contains 22 as substring.

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, 72526 + ... + 74773.

It is an arithmetic number, because the mean of its divisors is an integer number (24230850).

Almost surely, 2^165564076 is an apocalyptic number.

It is an amenable number.

165564076 is a deficient number, since it is larger than the sum of its proper divisors (125206124).

165564076 is a wasteful number, since it uses less digits than its factorization.

165564076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147584 (or 147582 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 165564076 is about 12867.1704737289. The cubic root of 165564076 is about 549.1049640989.

The spelling of 165564076 in words is "one hundred sixty-five million, five hundred sixty-four thousand, seventy-six".