116664291 has 12 divisors (see below), whose sum is σ = 168693720. Its totient is φ = 77693760.

The previous prime is 116664283. The next prime is 116664307. The reversal of 116664291 is 192466611.

It is not a de Polignac number, because 116664291 - 2³ = 116664283 is a prime.

It is a super-2 number, since 2×116664291² = 27221113589065362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (116664281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2811 + ... + 15531.

It is an arithmetic number, because the mean of its divisors is an integer number (14057810).

Almost surely, 2^116664291 is an apocalyptic number.

116664291 is a deficient number, since it is larger than the sum of its proper divisors (52029429).

116664291 is a wasteful number, since it uses less digits than its factorization.

116664291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13746 (or 13743 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 116664291 is about 10801.1245247891. The cubic root of 116664291 is about 488.6290862863.

The spelling of 116664291 in words is "one hundred sixteen million, six hundred sixty-four thousand, two hundred ninety-one".