625883696640 has 240 divisors, whose sum is σ = 2180922586128. Its totient is φ = 165877383168.

The previous prime is 625883696639. The next prime is 625883696687. The reversal of 625883696640 is 46696388526.

625883696640 is a `hidden beast` number, since 6 + 2 + 588 + 3 + 6 + 9 + 6 + 6 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3672192 + ... + 3838848.

Almost surely, 2^625883696640 is an apocalyptic number.

625883696640 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 625883696640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1090461293064).

625883696640 is an abundant number, since it is smaller than the sum of its proper divisors (1555038889488).

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

625883696640 is a wasteful number, since it uses less digits than its factorization.

625883696640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166849 (or 166830 counting only the distinct ones).

The product of its (nonzero) digits is 89579520, while the sum is 63.

The spelling of 625883696640 in words is "six hundred twenty-five billion, eight hundred eighty-three million, six hundred ninety-six thousand, six hundred forty".