116661392784 has 60 divisors (see below), whose sum is σ = 334453054572. Its totient is φ = 37938662400.

The previous prime is 116661392779. The next prime is 116661392797. The reversal of 116661392784 is 487293166611.

It can be written as a sum of positive squares in 2 ways, for example, as 21587837184 + 95073555600 = 146928^2 + 308340^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 116661392784.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9873957 + ... + 9885764.

Almost surely, 2^116661392784 is an apocalyptic number.

It is an amenable number.

116661392784 is an abundant number, since it is smaller than the sum of its proper divisors (217791661788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

116661392784 is a wasteful number, since it uses less digits than its factorization.

116661392784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19759776 (or 19759767 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The spelling of 116661392784 in words is "one hundred sixteen billion, six hundred sixty-one million, three hundred ninety-two thousand, seven hundred eighty-four".