18020374080366 has 40 divisors (see below), whose sum is σ = 42045037767144. Its totient is φ = 5148678304560.

The previous prime is 18020374080347. The next prime is 18020374080481. The reversal of 18020374080366 is 66308047302081.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 625432425 + ... + 625461236.

Almost surely, 2^{18020374080366} is an apocalyptic number.

18020374080366 is an abundant number, since it is smaller than the sum of its proper divisors (24024663686778).

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

18020374080366 is an equidigital number, since it uses as much as digits as its factorization.

18020374080366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250893694 (or 1250893673 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 18020374080366 in words is "eighteen trillion, twenty billion, three hundred seventy-four million, eighty thousand, three hundred sixty-six".