655550505100 has 18 divisors (see below), whose sum is σ = 1422544596284. Its totient is φ = 262220202000.

The previous prime is 655550505083. The next prime is 655550505101. The reversal of 655550505100 is 1505055556.

It is a self number, because there is not a number n which added to its sum of digits gives 655550505100.

It is not an unprimeable number, because it can be changed into a prime (655550505101) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 3277752426 + ... + 3277752625.

Almost surely, 2^655550505100 is an apocalyptic number.

It is an amenable number.

655550505100 is an abundant number, since it is smaller than the sum of its proper divisors (766994091184).

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

655550505100 is a wasteful number, since it uses less digits than its factorization.

655550505100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6555505065 (or 6555505058 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 37.

The spelling of 655550505100 in words is "six hundred fifty-five billion, five hundred fifty million, five hundred five thousand, one hundred".