166668333636 has 72 divisors (see below), whose sum is σ = 455839011936. Its totient is φ = 47255994240.

The previous prime is 166668333599. The next prime is 166668333653. The reversal of 166668333636 is 636333866661.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1004841 + ... + 1158896.

It is an arithmetic number, because the mean of its divisors is an integer number (6331097388).

Almost surely, 2^166668333636 is an apocalyptic number.

It is an amenable number.

166668333636 is an abundant number, since it is smaller than the sum of its proper divisors (289170678300).

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

166668333636 is a wasteful number, since it uses less digits than its factorization.

166668333636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2163889 (or 2163880 counting only the distinct ones).

The product of its digits is 30233088, while the sum is 57.

The spelling of 166668333636 in words is "one hundred sixty-six billion, six hundred sixty-eight million, three hundred thirty-three thousand, six hundred thirty-six".