551166330 has 64 divisors (see below), whose sum is σ = 1554069888. Its totient is φ = 123336960.

The previous prime is 551166323. The next prime is 551166349. The reversal of 551166330 is 33661155.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59949 + ... + 68528.

It is an arithmetic number, because the mean of its divisors is an integer number (24282342).

Almost surely, 2^551166330 is an apocalyptic number.

551166330 is an abundant number, since it is smaller than the sum of its proper divisors (1002903558).

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

551166330 is a wasteful number, since it uses less digits than its factorization.

551166330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128511.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 551166330 is about 23476.9318693904. The cubic root of 551166330 is about 819.9000125953.

The spelling of 551166330 in words is "five hundred fifty-one million, one hundred sixty-six thousand, three hundred thirty".