13916332720 has 40 divisors (see below), whose sum is σ = 32367330144. Its totient is φ = 5564493312.

The previous prime is 13916332687. The next prime is 13916332723. The reversal of 13916332720 is 2723361931.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 13916332720.

It is not an unprimeable number, because it can be changed into a prime (13916332723) 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, 198117 + ... + 259003.

Almost surely, 2^13916332720 is an apocalyptic number.

13916332720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13916332720 is an abundant number, since it is smaller than the sum of its proper divisors (18450997424).

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

13916332720 is a wasteful number, since it uses less digits than its factorization.

13916332720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63757 (or 63751 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 37.

The spelling of 13916332720 in words is "thirteen billion, nine hundred sixteen million, three hundred thirty-two thousand, seven hundred twenty".