655706620020 has 48 divisors (see below), whose sum is σ = 1836108445248. Its totient is φ = 174842726400.

The previous prime is 655706620013. The next prime is 655706620021. The reversal of 655706620020 is 20026607556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655706620021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 484627 + ... + 1243493.

It is an arithmetic number, because the mean of its divisors is an integer number (38252259276).

Almost surely, 2^655706620020 is an apocalyptic number.

655706620020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

655706620020 is an abundant number, since it is smaller than the sum of its proper divisors (1180401825228).

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

655706620020 is a wasteful number, since it uses less digits than its factorization.

655706620020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773280 (or 773278 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 39.

The spelling of 655706620020 in words is "six hundred fifty-five billion, seven hundred six million, six hundred twenty thousand, twenty".