116521920 has 84 divisors (see below), whose sum is σ = 400796760. Its totient is φ = 31071744.

The previous prime is 116521907. The next prime is 116521921. The reversal of 116521920 is 29125611.

116521920 is a `hidden beast` number, since 1 + 1 + 652 + 1 + 9 + 2 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116521921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17350 + ... + 23109.

It is an arithmetic number, because the mean of its divisors is an integer number (4771390).

Almost surely, 2^116521920 is an apocalyptic number.

116521920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

116521920 is an abundant number, since it is smaller than the sum of its proper divisors (284274840).

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

116521920 is a wasteful number, since it uses less digits than its factorization.

116521920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40482 (or 40469 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 116521920 is about 10794.5319490935. The cubic root of 116521920 is about 488.4302395820.

The spelling of 116521920 in words is "one hundred sixteen million, five hundred twenty-one thousand, nine hundred twenty".