18200020364 has 12 divisors (see below), whose sum is σ = 31855925304. Its totient is φ = 9098327424.

The previous prime is 18200020337. The next prime is 18200020373. The reversal of 18200020364 is 46302000281.

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, 396197 + ... + 439740.

It is an arithmetic number, because the mean of its divisors is an integer number (2654660442).

Almost surely, 2^18200020364 is an apocalyptic number.

It is an amenable number.

18200020364 is a deficient number, since it is larger than the sum of its proper divisors (13655904940).

18200020364 is a wasteful number, since it uses less digits than its factorization.

18200020364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841384 (or 841382 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The spelling of 18200020364 in words is "eighteen billion, two hundred million, twenty thousand, three hundred sixty-four".