252611694720 has 768 divisors, whose sum is σ = 1097912724480. Its totient is φ = 51990405120.

The previous prime is 252611694719. The next prime is 252611694733. The reversal of 252611694720 is 27496116252.

252611694720 is a `hidden beast` number, since 2 + 5 + 2 + 611 + 6 + 9 + 4 + 7 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 47453979 + ... + 47459301.

It is an arithmetic number, because the mean of its divisors is an integer number (1429573860).

Almost surely, 2^252611694720 is an apocalyptic number.

252611694720 is a gapful number since it is divisible by the number (20) 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 252611694720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (548956362240).

252611694720 is an abundant number, since it is smaller than the sum of its proper divisors (845301029760).

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

252611694720 is a wasteful number, since it uses less digits than its factorization.

252611694720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5473 (or 5458 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 252611694720 in words is "two hundred fifty-two billion, six hundred eleven million, six hundred ninety-four thousand, seven hundred twenty".