18122481360 has 60 divisors (see below), whose sum is σ = 60861335652. Its totient is φ = 4832661504.

The previous prime is 18122481353. The next prime is 18122481401. The reversal of 18122481360 is 6318422181.

It can be written as a sum of positive squares in 2 ways, for example, as 5522867856 + 12599613504 = 74316^2 + 112248^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12584337 + ... + 12585776.

Almost surely, 2^18122481360 is an apocalyptic number.

18122481360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18122481360 is an abundant number, since it is smaller than the sum of its proper divisors (42738854292).

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

18122481360 is a wasteful number, since it uses less digits than its factorization.

18122481360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25170132 (or 25170123 counting only the distinct ones).

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

The spelling of 18122481360 in words is "eighteen billion, one hundred twenty-two million, four hundred eighty-one thousand, three hundred sixty".