116561564 has 12 divisors (see below), whose sum is σ = 233123184. Its totient is φ = 49954944.

The previous prime is 116561531. The next prime is 116561567. The reversal of 116561564 is 465165611.

116561564 is an admirable number.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116561567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2081429 + ... + 2081484.

It is an arithmetic number, because the mean of its divisors is an integer number (19426932).

Almost surely, 2^116561564 is an apocalyptic number.

116561564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

116561564 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

116561564 is a wasteful number, since it uses less digits than its factorization.

116561564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4162924 (or 4162922 counting only the distinct ones).

The product of its digits is 21600, while the sum is 35.

The square root of 116561564 is about 10796.3680930209. The cubic root of 116561564 is about 488.4856258213.

The spelling of 116561564 in words is "one hundred sixteen million, five hundred sixty-one thousand, five hundred sixty-four".