116981758440 has 80 divisors (see below), whose sum is σ = 393188698980. Its totient is φ = 31195134720.

The previous prime is 116981758433. The next prime is 116981758447. The reversal of 116981758440 is 44857189611.

116981758440 is a `hidden beast` number, since 1 + 1 + 6 + 9 + 8 + 17 + 584 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (116981758433) and next prime (116981758447).

It can be written as a sum of positive squares in 2 ways, for example, as 113578436196 + 3403322244 = 337014^2 + 58338^2 .

It is a super-2 number, since 2×116981758440² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (116981758447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18049501 + ... + 18055980.

Almost surely, 2^116981758440 is an apocalyptic number.

116981758440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

116981758440 is an abundant number, since it is smaller than the sum of its proper divisors (276206940540).

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

116981758440 is a wasteful number, since it uses less digits than its factorization.

116981758440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36105504 (or 36105491 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 54.

The spelling of 116981758440 in words is "one hundred sixteen billion, nine hundred eighty-one million, seven hundred fifty-eight thousand, four hundred forty".