13522863656 has 32 divisors (see below), whose sum is σ = 26908980840. Its totient is φ = 6348976128.

The previous prime is 13522863649. The next prime is 13522863689. The reversal of 13522863656 is 65636822531.

It can be written as a sum of positive squares in 4 ways, for example, as 13378623556 + 144240100 = 115666^2 + 12010^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13522863656.

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, 55931 + ... + 173706.

Almost surely, 2^13522863656 is an apocalyptic number.

It is an amenable number.

13522863656 is a deficient number, since it is larger than the sum of its proper divisors (13386117184).

13522863656 is a wasteful number, since it uses less digits than its factorization.

13522863656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230093 (or 230089 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 47.

The spelling of 13522863656 in words is "thirteen billion, five hundred twenty-two million, eight hundred sixty-three thousand, six hundred fifty-six".