185986366116 has 12 divisors (see below), whose sum is σ = 433968187632. Its totient is φ = 61995455368.

The previous prime is 185986366099. The next prime is 185986366123. The reversal of 185986366116 is 611663689581.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 185986366116.

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, 7749431910 + ... + 7749431933.

It is an arithmetic number, because the mean of its divisors is an integer number (36164015636).

Almost surely, 2^185986366116 is an apocalyptic number.

It is an amenable number.

185986366116 is an abundant number, since it is smaller than the sum of its proper divisors (247981821516).

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

185986366116 is a wasteful number, since it uses less digits than its factorization.

185986366116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15498863850 (or 15498863848 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 60.

The spelling of 185986366116 in words is "one hundred eighty-five billion, nine hundred eighty-six million, three hundred sixty-six thousand, one hundred sixteen".