621353032056 has 48 divisors (see below), whose sum is σ = 1682930878200. Its totient is φ = 207105400512.

The previous prime is 621353032039. The next prime is 621353032061. The reversal of 621353032056 is 650230353126.

621353032056 is a `hidden beast` number, since 62 + 13 + 530 + 3 + 2 + 0 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 621353032056.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1010590 + ... + 1504658.

Almost surely, 2^621353032056 is an apocalyptic number.

It is an amenable number.

621353032056 is an abundant number, since it is smaller than the sum of its proper divisors (1061577846144).

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

621353032056 is a wasteful number, since it uses less digits than its factorization.

621353032056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511548 (or 511541 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 36.

The spelling of 621353032056 in words is "six hundred twenty-one billion, three hundred fifty-three million, thirty-two thousand, fifty-six".