116631641611665 has 24 divisors (see below), whose sum is σ = 207625336781928. Its totient is φ = 60522365376000.

The previous prime is 116631641611643. The next prime is 116631641611669. The reversal of 116631641611665 is 566116146136611.

116631641611665 is a `hidden beast` number, since 1 + 1 + 6 + 6 + 3 + 16 + 4 + 1 + 611 + 6 + 6 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4078553928849 + 112553087682816 = 2019543^2 + 10609104^2 .

It is not a de Polignac number, because 116631641611665 - 2²⁵ = 116631608057233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (116631641611669) 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 23 ways as a sum of consecutive naturals, for example, 35024515336 + ... + 35024518665.

It is an arithmetic number, because the mean of its divisors is an integer number (8651055699247).

Almost surely, 2^{116631641611665} is an apocalyptic number.

116631641611665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

116631641611665 is a deficient number, since it is larger than the sum of its proper divisors (90993695170263).

116631641611665 is a wasteful number, since it uses less digits than its factorization.

116631641611665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70049034049 (or 70049034046 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The spelling of 116631641611665 in words is "one hundred sixteen trillion, six hundred thirty-one billion, six hundred forty-one million, six hundred eleven thousand, six hundred sixty-five".