656600551166 has 16 divisors (see below), whose sum is σ = 1127099765760. Its totient is φ = 281025531000.

The previous prime is 656600551147. The next prime is 656600551169. The reversal of 656600551166 is 661155006656.

It is a super-2 number, since 2×656600551166² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 656600551166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656600551169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31214546 + ... + 31235573.

It is an arithmetic number, because the mean of its divisors is an integer number (70443735360).

Almost surely, 2^656600551166 is an apocalyptic number.

656600551166 is a deficient number, since it is larger than the sum of its proper divisors (470499214594).

656600551166 is a wasteful number, since it uses less digits than its factorization.

656600551166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62450879.

The product of its (nonzero) digits is 972000, while the sum is 47.

The spelling of 656600551166 in words is "six hundred fifty-six billion, six hundred million, five hundred fifty-one thousand, one hundred sixty-six".