551166216 has 32 divisors (see below), whose sum is σ = 1381410240. Its totient is φ = 183256128.

The previous prime is 551166167. The next prime is 551166223. The reversal of 551166216 is 612661155.

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, 19396 + ... + 38451.

It is an arithmetic number, because the mean of its divisors is an integer number (43169070).

Almost surely, 2^551166216 is an apocalyptic number.

It is an amenable number.

551166216 is an abundant number, since it is smaller than the sum of its proper divisors (830244024).

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

551166216 is a wasteful number, since it uses less digits than its factorization.

551166216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58253 (or 58249 counting only the distinct ones).

The product of its digits is 10800, while the sum is 33.

The square root of 551166216 is about 23476.9294414751. The cubic root of 551166216 is about 819.8999560675.

The spelling of 551166216 in words is "five hundred fifty-one million, one hundred sixty-six thousand, two hundred sixteen".