13165655472 has 30 divisors (see below), whose sum is σ = 36845550092. Its totient is φ = 4388551776.

The previous prime is 13165655467. The next prime is 13165655473. The reversal of 13165655472 is 27455656131.

13165655472 is a `hidden beast` number, since 1 + 3 + 16 + 565 + 5 + 4 + 72 = 666.

It is not an unprimeable number, because it can be changed into a prime (13165655473) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45713938 + ... + 45714225.

Almost surely, 2^13165655472 is an apocalyptic number.

13165655472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13165655472 is an abundant number, since it is smaller than the sum of its proper divisors (23679894620).

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

13165655472 is a wasteful number, since it uses less digits than its factorization.

13165655472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91428177 (or 91428168 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The spelling of 13165655472 in words is "thirteen billion, one hundred sixty-five million, six hundred fifty-five thousand, four hundred seventy-two".