116116616661 has 16 divisors (see below), whose sum is σ = 155404599168. Its totient is φ = 77120366400.

The previous prime is 116116616597. The next prime is 116116616729. The reversal of 116116616661 is 166616611611.

It is not a de Polignac number, because 116116616661 - 2⁶ = 116116616597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116116616261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 854971 + ... + 981431.

It is an arithmetic number, because the mean of its divisors is an integer number (9712787448).

Almost surely, 2^116116616661 is an apocalyptic number.

It is an amenable number.

116116616661 is a deficient number, since it is larger than the sum of its proper divisors (39287982507).

116116616661 is a wasteful number, since it uses less digits than its factorization.

116116616661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127612.

The product of its digits is 46656, while the sum is 42.

The spelling of 116116616661 in words is "one hundred sixteen billion, one hundred sixteen million, six hundred sixteen thousand, six hundred sixty-one".