52165645056 has 144 divisors (see below), whose sum is σ = 176300723200. Its totient is φ = 14904456192.

The previous prime is 52165645043. The next prime is 52165645057. The reversal of 52165645056 is 65054656125.

52165645056 is a `hidden beast` number, since 5 + 21 + 65 + 64 + 505 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (52165645057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 490696 + ... + 587463.

Almost surely, 2^52165645056 is an apocalyptic number.

52165645056 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

52165645056 is an abundant number, since it is smaller than the sum of its proper divisors (124135078144).

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

52165645056 is a wasteful number, since it uses less digits than its factorization.

52165645056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078191 (or 1078171 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 45.

The spelling of 52165645056 in words is "fifty-two billion, one hundred sixty-five million, six hundred forty-five thousand, fifty-six".