18053761220 has 48 divisors (see below), whose sum is σ = 43157778048. Its totient is φ = 6279567360.

The previous prime is 18053761189. The next prime is 18053761237. The reversal of 18053761220 is 2216735081.

It is a happy 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, 1778909 + ... + 1789028.

It is an arithmetic number, because the mean of its divisors is an integer number (899120376).

Almost surely, 2^18053761220 is an apocalyptic number.

18053761220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18053761220 is an abundant number, since it is smaller than the sum of its proper divisors (25104016828).

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

18053761220 is a wasteful number, since it uses less digits than its factorization.

18053761220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3567980 (or 3567978 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 18053761220 in words is "eighteen billion, fifty-three million, seven hundred sixty-one thousand, two hundred twenty".