116561970 has 64 divisors (see below), whose sum is σ = 355242240. Its totient is φ = 26642304.

The previous prime is 116561969. The next prime is 116561987. The reversal of 116561970 is 79165611.

It is a happy number.

116561970 is a `hidden beast` number, since 1 + 1 + 6 + 561 + 97 + 0 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28947 + ... + 32726.

It is an arithmetic number, because the mean of its divisors is an integer number (5550660).

Almost surely, 2^116561970 is an apocalyptic number.

116561970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

116561970 is an abundant number, since it is smaller than the sum of its proper divisors (238680270).

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

116561970 is a wasteful number, since it uses less digits than its factorization.

116561970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61696 (or 61690 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 116561970 is about 10796.3868956239. The cubic root of 116561970 is about 488.4861929749.

The spelling of 116561970 in words is "one hundred sixteen million, five hundred sixty-one thousand, nine hundred seventy".