52165644642 has 24 divisors (see below), whose sum is σ = 113033719344. Its totient is φ = 17387293464.

The previous prime is 52165644611. The next prime is 52165644709. The reversal of 52165644642 is 24644656125.

52165644642 is a `hidden beast` number, since 5 + 2 + 1 + 6 + 564 + 46 + 42 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171513 + ... + 365715.

It is an arithmetic number, because the mean of its divisors is an integer number (4709738306).

Almost surely, 2^52165644642 is an apocalyptic number.

52165644642 is an abundant number, since it is smaller than the sum of its proper divisors (60868074702).

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

52165644642 is a wasteful number, since it uses less digits than its factorization.

52165644642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209134 (or 209131 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 45.

The spelling of 52165644642 in words is "fifty-two billion, one hundred sixty-five million, six hundred forty-four thousand, six hundred forty-two".