13172651166 has 16 divisors (see below), whose sum is σ = 26791833600. Its totient is φ = 4316461848.

The previous prime is 13172651153. The next prime is 13172651171. The reversal of 13172651166 is 66115627131.

It is a super-2 number, since 2×13172651166² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 18605086 + ... + 18605793.

It is an arithmetic number, because the mean of its divisors is an integer number (1674489600).

Almost surely, 2^13172651166 is an apocalyptic number.

13172651166 is an abundant number, since it is smaller than the sum of its proper divisors (13619182434).

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

13172651166 is a wasteful number, since it uses less digits than its factorization.

13172651166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37210943.

The product of its digits is 45360, while the sum is 39.

The spelling of 13172651166 in words is "thirteen billion, one hundred seventy-two million, six hundred fifty-one thousand, one hundred sixty-six".