8637166660 has 24 divisors (see below), whose sum is σ = 18145595160. Its totient is φ = 3453429504.

The previous prime is 8637166633. The next prime is 8637166691. The reversal of 8637166660 is 666617368.

It can be written as a sum of positive squares in 4 ways, for example, as 3132417024 + 5504749636 = 55968^2 + 74194^2 .

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39865 + ... + 137344.

It is an arithmetic number, because the mean of its divisors is an integer number (756066465).

Almost surely, 2^8637166660 is an apocalyptic number.

It is an amenable number.

8637166660 is an abundant number, since it is smaller than the sum of its proper divisors (9508428500).

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

8637166660 is a wasteful number, since it uses less digits than its factorization.

8637166660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179655 (or 179653 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 49.

The square root of 8637166660 is about 92936.3581167242. The cubic root of 8637166660 is about 2051.7468085606.

The spelling of 8637166660 in words is "eight billion, six hundred thirty-seven million, one hundred sixty-six thousand, six hundred sixty".