18223201108020 has 48 divisors (see below), whose sum is σ = 51550993666368. Its totient is φ = 4809422146560.

The previous prime is 18223201107977. The next prime is 18223201108093. The reversal of 18223201108020 is 2080110232281.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 1565561286 + ... + 1565572925.

It is an arithmetic number, because the mean of its divisors is an integer number (1073979034716).

Almost surely, 2^{18223201108020} is an apocalyptic number.

18223201108020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18223201108020 is an abundant number, since it is smaller than the sum of its proper divisors (33327792558348).

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

18223201108020 is a wasteful number, since it uses less digits than its factorization.

18223201108020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3131134320 (or 3131134318 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The spelling of 18223201108020 in words is "eighteen trillion, two hundred twenty-three billion, two hundred one million, one hundred eight thousand, twenty".