116661392785 has 32 divisors (see below), whose sum is σ = 165294784512. Its totient is φ = 77349781440.

The previous prime is 116661392779. The next prime is 116661392797. The reversal of 116661392785 is 587293166611.

It is not a de Polignac number, because 116661392785 - 2¹⁷ = 116661261713 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1242604 + ... + 1333186.

It is an arithmetic number, because the mean of its divisors is an integer number (5165462016).

Almost surely, 2^116661392785 is an apocalyptic number.

It is an amenable number.

116661392785 is a deficient number, since it is larger than the sum of its proper divisors (48633391727).

116661392785 is a wasteful number, since it uses less digits than its factorization.

116661392785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91813.

The product of its digits is 3265920, while the sum is 55.

The spelling of 116661392785 in words is "one hundred sixteen billion, six hundred sixty-one million, three hundred ninety-two thousand, seven hundred eighty-five".