116981317920 has 96 divisors (see below), whose sum is σ = 368677431360. Its totient is φ = 31179248640.

The previous prime is 116981317913. The next prime is 116981317933. The reversal of 116981317920 is 29713189611.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×116981317920² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 116981317920.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 904686 + ... + 1025874.

It is an arithmetic number, because the mean of its divisors is an integer number (3840389910).

Almost surely, 2^116981317920 is an apocalyptic number.

116981317920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

116981317920 is an abundant number, since it is smaller than the sum of its proper divisors (251696113440).

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

116981317920 is a wasteful number, since it uses less digits than its factorization.

116981317920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123218 (or 123210 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 48.

The spelling of 116981317920 in words is "one hundred sixteen billion, nine hundred eighty-one million, three hundred seventeen thousand, nine hundred twenty".