12572162169 has 16 divisors (see below), whose sum is σ = 19161581568. Its totient is φ = 7182592272.

The previous prime is 12572162149. The next prime is 12572162191. The reversal of 12572162169 is 96126127521.

It is not a de Polignac number, because 12572162169 - 2²¹ = 12570065017 is a prime.

It is a super-2 number, since 2×12572162169² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12572162169.

It is not an unprimeable number, because it can be changed into a prime (12572162129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44704 + ... + 164750.

It is an arithmetic number, because the mean of its divisors is an integer number (1197598848).

Almost surely, 2^12572162169 is an apocalyptic number.

It is an amenable number.

12572162169 is a deficient number, since it is larger than the sum of its proper divisors (6589419399).

12572162169 is a wasteful number, since it uses less digits than its factorization.

12572162169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125044.

The product of its digits is 90720, while the sum is 42.

The spelling of 12572162169 in words is "twelve billion, five hundred seventy-two million, one hundred sixty-two thousand, one hundred sixty-nine".