13144906564 has 24 divisors (see below), whose sum is σ = 23847602688. Its totient is φ = 6333126720.

The previous prime is 13144906507. The next prime is 13144906573. The reversal of 13144906564 is 46560944131.

It is a self number, because there is not a number n which added to its sum of digits gives 13144906564.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198592 + ... + 256375.

It is an arithmetic number, because the mean of its divisors is an integer number (993650112).

Almost surely, 2^13144906564 is an apocalyptic number.

It is an amenable number.

13144906564 is a deficient number, since it is larger than the sum of its proper divisors (10702696124).

13144906564 is a wasteful number, since it uses less digits than its factorization.

13144906564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455235 (or 455233 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 13144906564 in words is "thirteen billion, one hundred forty-four million, nine hundred six thousand, five hundred sixty-four".