13156366472 has 36 divisors (see below), whose sum is σ = 24966760455. Its totient is φ = 6499510416.

The previous prime is 13156366429. The next prime is 13156366481. The reversal of 13156366472 is 27466365131.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 6578183236 + 6578183236 = 81106^2 + 81106^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=81106.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 34713179 + ... + 34713557.

Almost surely, 2^13156366472 is an apocalyptic number.

It is an amenable number.

13156366472 is a deficient number, since it is larger than the sum of its proper divisors (11810393983).

13156366472 is an frugal number, since it uses more digits than its factorization.

13156366472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978 (or 488 counting only the distinct ones).

The product of its digits is 544320, while the sum is 44.

The spelling of 13156366472 in words is "thirteen billion, one hundred fifty-six million, three hundred sixty-six thousand, four hundred seventy-two".