18881330202 has 40 divisors (see below), whose sum is σ = 48352192416. Its totient is φ = 5394665448.

The previous prime is 18881330159. The next prime is 18881330203. The reversal of 18881330202 is 20203318881.

It is not an unprimeable number, because it can be changed into a prime (18881330203) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8323968 + ... + 8326235.

Almost surely, 2^18881330202 is an apocalyptic number.

18881330202 is an abundant number, since it is smaller than the sum of its proper divisors (29470862214).

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

18881330202 is a wasteful number, since it uses less digits than its factorization.

18881330202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16650224 (or 16650215 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The spelling of 18881330202 in words is "eighteen billion, eight hundred eighty-one million, three hundred thirty thousand, two hundred two".