13536406544 has 40 divisors (see below), whose sum is σ = 26901503640. Its totient is φ = 6596121600.

The previous prime is 13536406489. The next prime is 13536406549. The reversal of 13536406544 is 44560463531.

It can be written as a sum of positive squares in 4 ways, for example, as 94322944 + 13442083600 = 9712^2 + 115940^2 .

It is not an unprimeable number, because it can be changed into a prime (13536406549) 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, 42764 + ... + 170004.

It is an arithmetic number, because the mean of its divisors is an integer number (672537591).

Almost surely, 2^13536406544 is an apocalyptic number.

It is an amenable number.

13536406544 is a deficient number, since it is larger than the sum of its proper divisors (13365097096).

13536406544 is a wasteful number, since it uses less digits than its factorization.

13536406544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127419 (or 127413 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 41.

The spelling of 13536406544 in words is "thirteen billion, five hundred thirty-six million, four hundred six thousand, five hundred forty-four".