116661774520 has 16 divisors (see below), whose sum is σ = 262488992760. Its totient is φ = 46664709792.

The previous prime is 116661774497. The next prime is 116661774547. The reversal of 116661774520 is 25477166611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1458272142 + ... + 1458272221.

Almost surely, 2^116661774520 is an apocalyptic number.

116661774520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

116661774520 is an abundant number, since it is smaller than the sum of its proper divisors (145827218240).

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

116661774520 is a wasteful number, since it uses less digits than its factorization.

116661774520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2916544374 (or 2916544370 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 116661774520 in words is "one hundred sixteen billion, six hundred sixty-one million, seven hundred seventy-four thousand, five hundred twenty".