116666456431 has 16 divisors (see below), whose sum is σ = 135441331200. Its totient is φ = 98427603168.

The previous prime is 116666456383. The next prime is 116666456437. The reversal of 116666456431 is 134654666611.

It is a cyclic number.

It is not a de Polignac number, because 116666456431 - 2¹⁵ = 116666423663 is a prime.

It is a super-2 number, since 2×116666456431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116666456437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216951 + ... + 529528.

It is an arithmetic number, because the mean of its divisors is an integer number (8465083200).

Almost surely, 2^116666456431 is an apocalyptic number.

116666456431 is a deficient number, since it is larger than the sum of its proper divisors (18774874769).

116666456431 is an equidigital number, since it uses as much as digits as its factorization.

116666456431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746838.

The product of its digits is 1866240, while the sum is 49.

The spelling of 116666456431 in words is "one hundred sixteen billion, six hundred sixty-six million, four hundred fifty-six thousand, four hundred thirty-one".