116656661 has 8 divisors (see below), whose sum is σ = 128692800. Its totient is φ = 104859040.

The previous prime is 116656651. The next prime is 116656663. The reversal of 116656661 is 166656611.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-116656661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116656663) 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, 58601 + ... + 60558.

It is an arithmetic number, because the mean of its divisors is an integer number (16086600).

Almost surely, 2^116656661 is an apocalyptic number.

116656661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

116656661 is a deficient number, since it is larger than the sum of its proper divisors (12036139).

116656661 is a wasteful number, since it uses less digits than its factorization.

116656661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119259.

The product of its digits is 38880, while the sum is 38.

The square root of 116656661 is about 10800.7713150497. The cubic root of 116656661 is about 488.6184337231.

The spelling of 116656661 in words is "one hundred sixteen million, six hundred fifty-six thousand, six hundred sixty-one".