111713265720 has 320 divisors, whose sum is σ = 430024320000. Its totient is φ = 25480707840.

The previous prime is 111713265683. The next prime is 111713265749. The reversal of 111713265720 is 27562317111.

111713265720 is a `hidden beast` number, since 1 + 11 + 71 + 3 + 2 + 6 + 572 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 11312385 + ... + 11322255.

It is an arithmetic number, because the mean of its divisors is an integer number (1343826000).

Almost surely, 2^111713265720 is an apocalyptic number.

111713265720 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 111713265720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215012160000).

111713265720 is an abundant number, since it is smaller than the sum of its proper divisors (318311054280).

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

111713265720 is a wasteful number, since it uses less digits than its factorization.

111713265720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10400 (or 10387 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The spelling of 111713265720 in words is "one hundred eleven billion, seven hundred thirteen million, two hundred sixty-five thousand, seven hundred twenty".