113656638848 has 64 divisors (see below), whose sum is σ = 230173379520. Its totient is φ = 55890362880.

The previous prime is 113656638827. The next prime is 113656638869. The reversal of 113656638848 is 848836656311.

It is an interprime number because it is at equal distance from previous prime (113656638827) and next prime (113656638869).

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5504063 + ... + 5524673.

It is an arithmetic number, because the mean of its divisors is an integer number (3596459055).

Almost surely, 2^113656638848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113656638848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115086689760).

113656638848 is an abundant number, since it is smaller than the sum of its proper divisors (116516740672).

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

113656638848 is an equidigital number, since it uses as much as digits as its factorization.

113656638848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21335 (or 21323 counting only the distinct ones).

The product of its digits is 19906560, while the sum is 59.

The spelling of 113656638848 in words is "one hundred thirteen billion, six hundred fifty-six million, six hundred thirty-eight thousand, eight hundred forty-eight".