165600566564 has 12 divisors (see below), whose sum is σ = 289823410800. Its totient is φ = 82793877768.

The previous prime is 165600566557. The next prime is 165600566597. The reversal of 165600566564 is 465665006561.

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, 1542974 + ... + 1646805.

It is an arithmetic number, because the mean of its divisors is an integer number (24151950900).

Almost surely, 2^165600566564 is an apocalyptic number.

It is an amenable number.

165600566564 is a deficient number, since it is larger than the sum of its proper divisors (124222844236).

165600566564 is a wasteful number, since it uses less digits than its factorization.

165600566564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3202762 (or 3202760 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 50.

The spelling of 165600566564 in words is "one hundred sixty-five billion, six hundred million, five hundred sixty-six thousand, five hundred sixty-four".