116678691 has 16 divisors (see below), whose sum is σ = 175440000. Its totient is φ = 76623624.

The previous prime is 116678663. The next prime is 116678707. The reversal of 116678691 is 196876611.

It is not a de Polignac number, because 116678691 - 2⁵ = 116678659 is a prime.

It is a super-2 number, since 2×116678691² = 27227833866946962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (116678621) 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, 30441 + ... + 34058.

It is an arithmetic number, because the mean of its divisors is an integer number (10965000).

Almost surely, 2^116678691 is an apocalyptic number.

116678691 is a deficient number, since it is larger than the sum of its proper divisors (58761309).

116678691 is an equidigital number, since it uses as much as digits as its factorization.

116678691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64575 (or 64569 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 116678691 is about 10801.7911014794. The cubic root of 116678691 is about 488.6491894653.

The spelling of 116678691 in words is "one hundred sixteen million, six hundred seventy-eight thousand, six hundred ninety-one".