252506702665 has 16 divisors (see below), whose sum is σ = 354741125760. Its totient is φ = 168924343680.

The previous prime is 252506702641. The next prime is 252506702681. The reversal of 252506702665 is 566207605252.

It is not a de Polignac number, because 252506702665 - 2⁹ = 252506702153 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87979995 + ... + 87982864.

It is an arithmetic number, because the mean of its divisors is an integer number (22171320360).

Almost surely, 2^252506702665 is an apocalyptic number.

It is an amenable number.

252506702665 is a deficient number, since it is larger than the sum of its proper divisors (102234423095).

252506702665 is a wasteful number, since it uses less digits than its factorization.

252506702665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175962912.

The product of its (nonzero) digits is 1512000, while the sum is 46.

The spelling of 252506702665 in words is "two hundred fifty-two billion, five hundred six million, seven hundred two thousand, six hundred sixty-five".