551612915180 has 48 divisors (see below), whose sum is σ = 1230522977376. Its totient is φ = 206989562880.

The previous prime is 551612915173. The next prime is 551612915201. The reversal of 551612915180 is 81519216155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2537951 + ... + 2746710.

It is an arithmetic number, because the mean of its divisors is an integer number (25635895362).

Almost surely, 2^551612915180 is an apocalyptic number.

It is an amenable number.

551612915180 is an abundant number, since it is smaller than the sum of its proper divisors (678910062196).

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

551612915180 is a wasteful number, since it uses less digits than its factorization.

551612915180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5284994 (or 5284992 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 44.

The spelling of 551612915180 in words is "five hundred fifty-one billion, six hundred twelve million, nine hundred fifteen thousand, one hundred eighty".