18202044336 has 80 divisors (see below), whose sum is σ = 56075887104. Its totient is φ = 4974469632.

The previous prime is 18202044319. The next prime is 18202044349. The reversal of 18202044336 is 63344020281.

It is a junction number, because it is equal to n+sod(n) for n = 18202044297 and 18202044306.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1169941 + ... + 1185396.

Almost surely, 2^18202044336 is an apocalyptic number.

18202044336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18202044336 is an abundant number, since it is smaller than the sum of its proper divisors (37873842768).

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

18202044336 is a wasteful number, since it uses less digits than its factorization.

18202044336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2355378 (or 2355372 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The spelling of 18202044336 in words is "eighteen billion, two hundred two million, forty-four thousand, three hundred thirty-six".