165656528 has 10 divisors (see below), whose sum is σ = 320959554. Its totient is φ = 82828256.

The previous prime is 165656489. The next prime is 165656537. The reversal of 165656528 is 825656561.

It can be written as a sum of positive squares in only one way, i.e., 159466384 + 6190144 = 12628^2 + 2488^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5176751 + ... + 5176782.

Almost surely, 2^165656528 is an apocalyptic number.

It is an amenable number.

165656528 is a deficient number, since it is larger than the sum of its proper divisors (155303026).

165656528 is a wasteful number, since it uses less digits than its factorization.

165656528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10353541 (or 10353535 counting only the distinct ones).

The product of its digits is 432000, while the sum is 44.

The square root of 165656528 is about 12870.7625259734. The cubic root of 165656528 is about 549.2071529452.

The spelling of 165656528 in words is "one hundred sixty-five million, six hundred fifty-six thousand, five hundred twenty-eight".