116661774518 has 8 divisors (see below), whose sum is σ = 182601038448. Its totient is φ = 55794761704.

The previous prime is 116661774497. The next prime is 116661774547. The reversal of 116661774518 is 815477166611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 116661774518.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 1268062721 + ... + 1268062812.

It is an arithmetic number, because the mean of its divisors is an integer number (22825129806).

Almost surely, 2^116661774518 is an apocalyptic number.

116661774518 is a deficient number, since it is larger than the sum of its proper divisors (65939263930).

116661774518 is a wasteful number, since it uses less digits than its factorization.

116661774518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2536125558.

The product of its digits is 1693440, while the sum is 53.

The spelling of 116661774518 in words is "one hundred sixteen billion, six hundred sixty-one million, seven hundred seventy-four thousand, five hundred eighteen".