116166691 has 2 divisors, whose sum is σ = 116166692. Its totient is φ = 116166690.

The previous prime is 116166679. The next prime is 116166707. The reversal of 116166691 is 196661611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 116166691 - 2⁹ = 116166179 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 116166691.

It is not a weakly prime, because it can be changed into another prime (116166191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58083345 + 58083346.

It is an arithmetic number, because the mean of its divisors is an integer number (58083346).

Almost surely, 2^116166691 is an apocalyptic number.

116166691 is a deficient number, since it is larger than the sum of its proper divisors (1).

116166691 is an equidigital number, since it uses as much as digits as its factorization.

116166691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 37.

The square root of 116166691 is about 10778.0652716524. The cubic root of 116166691 is about 487.9333911484.

The spelling of 116166691 in words is "one hundred sixteen million, one hundred sixty-six thousand, six hundred ninety-one".