113660651520 has 960 divisors, whose sum is σ = 447515228160. Its totient is φ = 27423277056.

The previous prime is 113660651501. The next prime is 113660651551. The reversal of 113660651520 is 25156066311.

113660651520 is a `hidden beast` number, since 1 + 1 + 36 + 606 + 5 + 15 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (960).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 79 ways as a sum of consecutive naturals, for example, 894965697 + ... + 894965823.

It is an arithmetic number, because the mean of its divisors is an integer number (466161696).

Almost surely, 2^113660651520 is an apocalyptic number.

113660651520 is a gapful number since it is divisible by the number (10) 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 113660651520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223757614080).

113660651520 is an abundant number, since it is smaller than the sum of its proper divisors (333854576640).

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

113660651520 is a wasteful number, since it uses less digits than its factorization.

113660651520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 113660651520 in words is "one hundred thirteen billion, six hundred sixty million, six hundred fifty-one thousand, five hundred twenty".