551777130660 has 96 divisors (see below), whose sum is σ = 1766168877312. Its totient is φ = 126086054400.

The previous prime is 551777130623. The next prime is 551777130679. The reversal of 551777130660 is 66031777155.

It is a happy number.

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, 1376934 + ... + 1731906.

It is an arithmetic number, because the mean of its divisors is an integer number (18397592472).

Almost surely, 2^551777130660 is an apocalyptic number.

It is an amenable number.

551777130660 is an abundant number, since it is smaller than the sum of its proper divisors (1214391746652).

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

551777130660 is a wasteful number, since it uses less digits than its factorization.

551777130660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358693 (or 358691 counting only the distinct ones).

The product of its (nonzero) digits is 926100, while the sum is 48.

The spelling of 551777130660 in words is "five hundred fifty-one billion, seven hundred seventy-seven million, one hundred thirty thousand, six hundred sixty".