625657940160 has 224 divisors, whose sum is σ = 2219908045824. Its totient is φ = 147975168000.

The previous prime is 625657940143. The next prime is 625657940191. The reversal of 625657940160 is 61049756526.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 289576 + ... + 1155495.

It is an arithmetic number, because the mean of its divisors is an integer number (9910303776).

Almost surely, 2^625657940160 is an apocalyptic number.

625657940160 is a gapful number since it is divisible by the number (60) 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 625657940160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1109954022912).

625657940160 is an abundant number, since it is smaller than the sum of its proper divisors (1594250105664).

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

625657940160 is a wasteful number, since it uses less digits than its factorization.

625657940160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445143 (or 1445133 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 51.

The spelling of 625657940160 in words is "six hundred twenty-five billion, six hundred fifty-seven million, nine hundred forty thousand, one hundred sixty".