13599940856832 has 704 divisors, whose sum is σ = 46601358750720. Its totient is φ = 3877267046400.

The previous prime is 13599940856797. The next prime is 13599940856851. The reversal of 13599940856832 is 23865804999531.

It is a happy number.

13599940856832 is a `hidden beast` number, since 1 + 3 + 5 + 9 + 99 + 408 + 56 + 83 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (704).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 426675648 + ... + 426707520.

Almost surely, 2^{13599940856832} is an apocalyptic number.

13599940856832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13599940856832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23300679375360).

13599940856832 is an abundant number, since it is smaller than the sum of its proper divisors (33001417893888).

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

13599940856832 is a wasteful number, since it uses less digits than its factorization.

13599940856832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31997 (or 31973 counting only the distinct ones).

The product of its (nonzero) digits is 503884800, while the sum is 72.

The spelling of 13599940856832 in words is "thirteen trillion, five hundred ninety-nine billion, nine hundred forty million, eight hundred fifty-six thousand, eight hundred thirty-two".