116506661 has 8 divisors (see below), whose sum is σ = 128723904. Its totient is φ = 104885440.

The previous prime is 116506639. The next prime is 116506679. The reversal of 116506661 is 166605611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 116506661 - 2⁶ = 116506597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116506361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148595 + ... + 149376.

It is an arithmetic number, because the mean of its divisors is an integer number (16090488).

Almost surely, 2^116506661 is an apocalyptic number.

It is an amenable number.

116506661 is a deficient number, since it is larger than the sum of its proper divisors (12217243).

116506661 is a wasteful number, since it uses less digits than its factorization.

116506661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298011.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 116506661 is about 10793.8251329174. The cubic root of 116506661 is about 488.4089180361.

The spelling of 116506661 in words is "one hundred sixteen million, five hundred six thousand, six hundred sixty-one".