17986992966 has 96 divisors (see below), whose sum is σ = 41116128768. Its totient is φ = 5676834240.

The previous prime is 17986992937. The next prime is 17986992983. The reversal of 17986992966 is 66929968971.

17986992966 is a `hidden beast` number, since 179 + 86 + 99 + 296 + 6 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 17986992894 and 17986992903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3890136 + ... + 3894756.

It is an arithmetic number, because the mean of its divisors is an integer number (428293008).

Almost surely, 2^17986992966 is an apocalyptic number.

17986992966 is an abundant number, since it is smaller than the sum of its proper divisors (23129135802).

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

17986992966 is a wasteful number, since it uses less digits than its factorization.

17986992966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4826 (or 4823 counting only the distinct ones).

The product of its digits is 158723712, while the sum is 72.

The spelling of 17986992966 in words is "seventeen billion, nine hundred eighty-six million, nine hundred ninety-two thousand, nine hundred sixty-six".