13026279872166 has 64 divisors (see below), whose sum is σ = 29679123534336. Its totient is φ = 3772874476800.

The previous prime is 13026279872161. The next prime is 13026279872173. The reversal of 13026279872166 is 66127897262031.

It is a super-2 number, since 2×13026279872166² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13026279872161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1242721 + ... + 5253276.

It is an arithmetic number, because the mean of its divisors is an integer number (463736305224).

Almost surely, 2^{13026279872166} is an apocalyptic number.

13026279872166 is an abundant number, since it is smaller than the sum of its proper divisors (16652843662170).

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

13026279872166 is a wasteful number, since it uses less digits than its factorization.

13026279872166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6497357.

The product of its (nonzero) digits is 18289152, while the sum is 60.

The spelling of 13026279872166 in words is "thirteen trillion, twenty-six billion, two hundred seventy-nine million, eight hundred seventy-two thousand, one hundred sixty-six".