551556056516 has 24 divisors (see below), whose sum is σ = 986117098176. Its totient is φ = 269862832800.

The previous prime is 551556056503. The next prime is 551556056531. The reversal of 551556056516 is 615650655155.

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, 6774251 + ... + 6855186.

It is an arithmetic number, because the mean of its divisors is an integer number (41088212424).

Almost surely, 2^551556056516 is an apocalyptic number.

It is an amenable number.

551556056516 is a deficient number, since it is larger than the sum of its proper divisors (434561041660).

551556056516 is a wasteful number, since it uses less digits than its factorization.

551556056516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13629659 (or 13629657 counting only the distinct ones).

The product of its (nonzero) digits is 3375000, while the sum is 50.

The spelling of 551556056516 in words is "five hundred fifty-one billion, five hundred fifty-six million, fifty-six thousand, five hundred sixteen".