621063455532020 has 48 divisors (see below), whose sum is σ = 1380957940454400. Its totient is φ = 233811264244224.

The previous prime is 621063455532007. The next prime is 621063455532041. The reversal of 621063455532020 is 20235554360126.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93273437 + ... + 99709883.

It is an arithmetic number, because the mean of its divisors is an integer number (28769957092800).

Almost surely, 2^{621063455532020} is an apocalyptic number.

It is an amenable number.

621063455532020 is an abundant number, since it is smaller than the sum of its proper divisors (759894484922380).

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

621063455532020 is a wasteful number, since it uses less digits than its factorization.

621063455532020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6720272 (or 6720270 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 44.

The spelling of 621063455532020 in words is "six hundred twenty-one trillion, sixty-three billion, four hundred fifty-five million, five hundred thirty-two thousand, twenty".