113251263616 has 48 divisors (see below), whose sum is σ = 226802360610. Its totient is φ = 56329863168.

The previous prime is 113251263613. The next prime is 113251263617. The reversal of 113251263616 is 616362152311.

It can be written as a sum of positive squares in 3 ways, for example, as 81956238400 + 31295025216 = 286280^2 + 176904^2 .

It is not an unprimeable number, because it can be changed into a prime (113251263613) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4755996 + ... + 4779748.

Almost surely, 2^113251263616 is an apocalyptic number.

113251263616 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 113251263616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113401180305).

113251263616 is an abundant number, since it is smaller than the sum of its proper divisors (113551096994).

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

113251263616 is an frugal number, since it uses more digits than its factorization.

113251263616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24153 (or 23948 counting only the distinct ones).

The product of its digits is 38880, while the sum is 37.

The spelling of 113251263616 in words is "one hundred thirteen billion, two hundred fifty-one million, two hundred sixty-three thousand, six hundred sixteen".