36668542564 has 24 divisors (see below), whose sum is σ = 68645125080. Its totient is φ = 17077886976.

The previous prime is 36668542543. The next prime is 36668542571. The reversal of 36668542564 is 46524586663.

It can be written as a sum of positive squares in 4 ways, for example, as 5548760100 + 31119782464 = 74490^2 + 176408^2 .

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, 2773009 + ... + 2786200.

It is an arithmetic number, because the mean of its divisors is an integer number (2860213545).

Almost surely, 2^36668542564 is an apocalyptic number.

36668542564 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

36668542564 is a deficient number, since it is larger than the sum of its proper divisors (31976582516).

36668542564 is a wasteful number, since it uses less digits than its factorization.

36668542564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5559327 (or 5559325 counting only the distinct ones).

The product of its digits is 24883200, while the sum is 55.

The spelling of 36668542564 in words is "thirty-six billion, six hundred sixty-eight million, five hundred forty-two thousand, five hundred sixty-four".