13656444532 has 6 divisors (see below), whose sum is σ = 23898777938. Its totient is φ = 6828222264.

The previous prime is 13656444523. The next prime is 13656444551. The reversal of 13656444532 is 23544465631.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11372942736 + 2283501796 = 106644^2 + 47786^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1707055563 + ... + 1707055570.

Almost surely, 2^13656444532 is an apocalyptic number.

It is an amenable number.

13656444532 is a deficient number, since it is larger than the sum of its proper divisors (10242333406).

13656444532 is a wasteful number, since it uses less digits than its factorization.

13656444532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3414111137 (or 3414111135 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 43.

The spelling of 13656444532 in words is "thirteen billion, six hundred fifty-six million, four hundred forty-four thousand, five hundred thirty-two".