620658010548020 has 24 divisors (see below), whose sum is σ = 1303695663361224. Its totient is φ = 248203424941056.

The previous prime is 620658010547941. The next prime is 620658010548089. The reversal of 620658010548020 is 20845010856026.

It can be written as a sum of positive squares in 4 ways, for example, as 1444255939984 + 619213754608036 = 1201772^2 + 24884006^2 .

It is a super-2 number, since 2×620658010548020² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3736119749 + ... + 3736285868.

It is an arithmetic number, because the mean of its divisors is an integer number (54320652640051).

Almost surely, 2^{620658010548020} is an apocalyptic number.

It is an amenable number.

620658010548020 is an abundant number, since it is smaller than the sum of its proper divisors (683037652813204).

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

620658010548020 is a wasteful number, since it uses less digits than its factorization.

620658010548020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7472409779 (or 7472409777 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 47.

The spelling of 620658010548020 in words is "six hundred twenty trillion, six hundred fifty-eight billion, ten million, five hundred forty-eight thousand, twenty".