252660615636 has 192 divisors, whose sum is σ = 698464521216. Its totient is φ = 70079385600.

The previous prime is 252660615593. The next prime is 252660615643. The reversal of 252660615636 is 636516066252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 111156196 + ... + 111158468.

It is an arithmetic number, because the mean of its divisors is an integer number (3637836048).

Almost surely, 2^252660615636 is an apocalyptic number.

252660615636 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252660615636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349232260608).

252660615636 is an abundant number, since it is smaller than the sum of its proper divisors (445803905580).

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

252660615636 is a wasteful number, since it uses less digits than its factorization.

252660615636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2822 (or 2820 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 48.

The spelling of 252660615636 in words is "two hundred fifty-two billion, six hundred sixty million, six hundred fifteen thousand, six hundred thirty-six".