655560655500 has 96 divisors (see below), whose sum is σ = 2021286391488. Its totient is φ = 164532864000.

The previous prime is 655560655493. The next prime is 655560655511. The reversal of 655560655500 is 5556065556.

It is a self number, because there is not a number n which added to its sum of digits gives 655560655500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12828631 + ... + 12879630.

It is an arithmetic number, because the mean of its divisors is an integer number (21055066578).

Almost surely, 2^655560655500 is an apocalyptic number.

655560655500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

655560655500 is an abundant number, since it is smaller than the sum of its proper divisors (1365725735988).

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

655560655500 is a wasteful number, since it uses less digits than its factorization.

655560655500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25708300 (or 25708288 counting only the distinct ones).

The product of its (nonzero) digits is 3375000, while the sum is 48.

The spelling of 655560655500 in words is "six hundred fifty-five billion, five hundred sixty million, six hundred fifty-five thousand, five hundred".