551606166 has 32 divisors (see below), whose sum is σ = 1230250080. Its totient is φ = 183199968.

The previous prime is 551606113. The next prime is 551606173. The reversal of 551606166 is 661606155.

It is a self number, because there is not a number n which added to its sum of digits gives 551606166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3481 + ... + 33396.

It is an arithmetic number, because the mean of its divisors is an integer number (38445315).

Almost surely, 2^551606166 is an apocalyptic number.

551606166 is an abundant number, since it is smaller than the sum of its proper divisors (678643914).

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

551606166 is a wasteful number, since it uses less digits than its factorization.

551606166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37165 (or 37159 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 551606166 is about 23486.2974093406. The cubic root of 551606166 is about 820.1180506226.

The spelling of 551606166 in words is "five hundred fifty-one million, six hundred six thousand, one hundred sixty-six".