13930880656 has 160 divisors (see below), whose sum is σ = 36595729152. Its totient is φ = 4970004480.

The previous prime is 13930880653. The next prime is 13930880669. The reversal of 13930880656 is 65608803931.

13930880656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13930880653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 765940 + ... + 783916.

Almost surely, 2^13930880656 is an apocalyptic number.

13930880656 is a gapful number since it is divisible by the number (16) 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 13930880656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18297864576).

13930880656 is an abundant number, since it is smaller than the sum of its proper divisors (22664848496).

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

13930880656 is a wasteful number, since it uses less digits than its factorization.

13930880656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18057 (or 18051 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 13930880656 in words is "thirteen billion, nine hundred thirty million, eight hundred eighty thousand, six hundred fifty-six".