656200102020 has 24 divisors (see below), whose sum is σ = 1837360285824. Its totient is φ = 174986693856.

The previous prime is 656200102007. The next prime is 656200102069. The reversal of 656200102020 is 20201002656.

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, 5468334124 + ... + 5468334243.

It is an arithmetic number, because the mean of its divisors is an integer number (76556678576).

Almost surely, 2^656200102020 is an apocalyptic number.

656200102020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

656200102020 is an abundant number, since it is smaller than the sum of its proper divisors (1181160183804).

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

656200102020 is a wasteful number, since it uses less digits than its factorization.

656200102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10936668379 (or 10936668377 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 656200102020 its reverse (20201002656), we get a palindrome (676401104676).

The spelling of 656200102020 in words is "six hundred fifty-six billion, two hundred million, one hundred two thousand, twenty".