18706566504496 has 160 divisors (see below), whose sum is σ = 39576338063360. Its totient is φ = 8514363174912.

The previous prime is 18706566504481. The next prime is 18706566504547. The reversal of 18706566504496 is 69440566560781.

It is a hoax number, since the sum of its digits (67) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3236987335 + ... + 3236993113.

It is an arithmetic number, because the mean of its divisors is an integer number (247352112896).

Almost surely, 2^{18706566504496} is an apocalyptic number.

18706566504496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18706566504496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19788169031680).

18706566504496 is an abundant number, since it is smaller than the sum of its proper divisors (20869771558864).

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

18706566504496 is a wasteful number, since it uses less digits than its factorization.

18706566504496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6643 (or 6637 counting only the distinct ones).

The product of its (nonzero) digits is 261273600, while the sum is 67.

The spelling of 18706566504496 in words is "eighteen trillion, seven hundred six billion, five hundred sixty-six million, five hundred four thousand, four hundred ninety-six".