620704057776 has 80 divisors (see below), whose sum is σ = 1773219423360. Its totient is φ = 185515522560.

The previous prime is 620704057769. The next prime is 620704057811. The reversal of 620704057776 is 677750407026.

It is a happy number.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

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, 8013346 + ... + 8090433.

It is an arithmetic number, because the mean of its divisors is an integer number (22165242792).

Almost surely, 2^620704057776 is an apocalyptic number.

620704057776 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

620704057776 is an abundant number, since it is smaller than the sum of its proper divisors (1152515365584).

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

620704057776 is a wasteful number, since it uses less digits than its factorization.

620704057776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16103874 (or 16103868 counting only the distinct ones).

The product of its (nonzero) digits is 3457440, while the sum is 51.

The spelling of 620704057776 in words is "six hundred twenty billion, seven hundred four million, fifty-seven thousand, seven hundred seventy-six".