116565660 has 36 divisors (see below), whose sum is σ = 353583048. Its totient is φ = 31084128.

The previous prime is 116565649. The next prime is 116565677. The reversal of 116565660 is 66565611.

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

It is a Harshad number since it is a multiple of its sum of digits (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, 323614 + ... + 323973.

Almost surely, 2^116565660 is an apocalyptic number.

116565660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

116565660 is an abundant number, since it is smaller than the sum of its proper divisors (237017388).

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

116565660 is a wasteful number, since it uses less digits than its factorization.

116565660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647602 (or 647597 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 116565660 is about 10796.5577847757. The cubic root of 116565660 is about 488.4913475865.

The spelling of 116565660 in words is "one hundred sixteen million, five hundred sixty-five thousand, six hundred sixty".