18244116624 has 40 divisors (see below), whose sum is σ = 47327863680. Its totient is φ = 6055923328.

The previous prime is 18244116623. The next prime is 18244116637. The reversal of 18244116624 is 42661144281.

It is a super-2 number, since 2×18244116624² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (18244116623) 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, 783687 + ... + 806630.

It is an arithmetic number, because the mean of its divisors is an integer number (1183196592).

Almost surely, 2^18244116624 is an apocalyptic number.

It is an amenable number.

18244116624 is an abundant number, since it is smaller than the sum of its proper divisors (29083747056).

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

18244116624 is a wasteful number, since it uses less digits than its factorization.

18244116624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590567 (or 1590561 counting only the distinct ones).

The product of its digits is 73728, while the sum is 39.

The spelling of 18244116624 in words is "eighteen billion, two hundred forty-four million, one hundred sixteen thousand, six hundred twenty-four".