18453100220 has 24 divisors (see below), whose sum is σ = 39297309408. Its totient is φ = 7277278400.

The previous prime is 18453100217. The next prime is 18453100319. The reversal of 18453100220 is 2200135481.

It is a self number, because there is not a number n which added to its sum of digits gives 18453100220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6496151 + ... + 6498990.

It is an arithmetic number, because the mean of its divisors is an integer number (1637387892).

Almost surely, 2^18453100220 is an apocalyptic number.

18453100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18453100220 is an abundant number, since it is smaller than the sum of its proper divisors (20844209188).

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

18453100220 is a wasteful number, since it uses less digits than its factorization.

18453100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12995221 (or 12995219 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The spelling of 18453100220 in words is "eighteen billion, four hundred fifty-three million, one hundred thousand, two hundred twenty".