165050565616556 has 12 divisors (see below), whose sum is σ = 298798437754320. Its totient is φ = 79679583401040.

The previous prime is 165050565616529. The next prime is 165050565616633. The reversal of 165050565616556 is 655616565050561.

It is a super-2 number, since 2×165050565616556² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 711424851680 + ... + 711424851911.

It is an arithmetic number, because the mean of its divisors is an integer number (24899869812860).

Almost surely, 2^{165050565616556} is an apocalyptic number.

It is an amenable number.

165050565616556 is a deficient number, since it is larger than the sum of its proper divisors (133747872137764).

165050565616556 is a wasteful number, since it uses less digits than its factorization.

165050565616556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422849703624 (or 1422849703622 counting only the distinct ones).

The product of its (nonzero) digits is 121500000, while the sum is 62.

The spelling of 165050565616556 in words is "one hundred sixty-five trillion, fifty billion, five hundred sixty-five million, six hundred sixteen thousand, five hundred fifty-six".