116564220 has 36 divisors (see below), whose sum is σ = 353578680. Its totient is φ = 31083744.

The previous prime is 116564213. The next prime is 116564233. The reversal of 116564220 is 22465611.

116564220 is a `hidden beast` number, since 1 + 1 + 656 + 4 + 2 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 323610 + ... + 323969.

It is an arithmetic number, because the mean of its divisors is an integer number (9821630).

Almost surely, 2^116564220 is an apocalyptic number.

116564220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

116564220 is an abundant number, since it is smaller than the sum of its proper divisors (237014460).

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

116564220 is a wasteful number, since it uses less digits than its factorization.

116564220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647594 (or 647589 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 116564220 is about 10796.4910966480. The cubic root of 116564220 is about 488.4893360437.

It can be divided in two parts, 11656 and 4220, that added together give a square (15876 = 126²).

The spelling of 116564220 in words is "one hundred sixteen million, five hundred sixty-four thousand, two hundred twenty".