18083568020 has 24 divisors (see below), whose sum is σ = 43400563584. Its totient is φ = 6200080416.

The previous prime is 18083567951. The next prime is 18083568023. The reversal of 18083568020 is 2086538081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18083568023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64584032 + ... + 64584311.

It is an arithmetic number, because the mean of its divisors is an integer number (1808356816).

Almost surely, 2^18083568020 is an apocalyptic number.

18083568020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18083568020 is an abundant number, since it is smaller than the sum of its proper divisors (25316995564).

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

18083568020 is a wasteful number, since it uses less digits than its factorization.

18083568020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129168359 (or 129168357 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The spelling of 18083568020 in words is "eighteen billion, eighty-three million, five hundred sixty-eight thousand, twenty".