551020154560 has 28 divisors (see below), whose sum is σ = 1312116743808. Its totient is φ = 220408061696.

The previous prime is 551020154413. The next prime is 551020154579. The reversal of 551020154560 is 65451020155.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 860968672 + ... + 860969311.

Almost surely, 2^551020154560 is an apocalyptic number.

It is an amenable number.

551020154560 is an abundant number, since it is smaller than the sum of its proper divisors (761096589248).

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

551020154560 is a wasteful number, since it uses less digits than its factorization.

551020154560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1721938000 (or 1721937990 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 34.

The spelling of 551020154560 in words is "five hundred fifty-one billion, twenty million, one hundred fifty-four thousand, five hundred sixty".