116571816 has 24 divisors (see below), whose sum is σ = 315715530. Its totient is φ = 38857248.

The previous prime is 116571799. The next prime is 116571823. The reversal of 116571816 is 618175611.

116571816 is a `hidden beast` number, since 1 + 1 + 6 + 571 + 81 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 109118916 + 7452900 = 10446^2 + 2730^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 809455 + ... + 809598.

Almost surely, 2^116571816 is an apocalyptic number.

It is an amenable number.

116571816 is an abundant number, since it is smaller than the sum of its proper divisors (199143714).

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

116571816 is a wasteful number, since it uses less digits than its factorization.

116571816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619065 (or 1619058 counting only the distinct ones).

The product of its digits is 10080, while the sum is 36.

The square root of 116571816 is about 10796.8428718769. The cubic root of 116571816 is about 488.4999467451.

The spelling of 116571816 in words is "one hundred sixteen million, five hundred seventy-one thousand, eight hundred sixteen".