12665160456 has 32 divisors (see below), whose sum is σ = 34098509760. Its totient is φ = 3896972352.

The previous prime is 12665160451. The next prime is 12665160509. The reversal of 12665160456 is 65406156621.

It is a super-2 number, since 2×12665160456² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12665160451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20296420 + ... + 20297043.

It is an arithmetic number, because the mean of its divisors is an integer number (1065578430).

Almost surely, 2^12665160456 is an apocalyptic number.

It is an amenable number.

12665160456 is an abundant number, since it is smaller than the sum of its proper divisors (21433349304).

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

12665160456 is a wasteful number, since it uses less digits than its factorization.

12665160456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40593485 (or 40593481 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 12665160456 in words is "twelve billion, six hundred sixty-five million, one hundred sixty thousand, four hundred fifty-six".