18595372224 has 224 divisors, whose sum is σ = 59215080960. Its totient is φ = 5074329600.

The previous prime is 18595372217. The next prime is 18595372249. The reversal of 18595372224 is 42227359581.

It is a super-2 number, since 2×18595372224² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1117437 + ... + 1133955.

It is an arithmetic number, because the mean of its divisors is an integer number (264353040).

Almost surely, 2^18595372224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18595372224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29607540480).

18595372224 is an abundant number, since it is smaller than the sum of its proper divisors (40619708736).

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

18595372224 is a wasteful number, since it uses less digits than its factorization.

18595372224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16599 (or 16589 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 48.

The spelling of 18595372224 in words is "eighteen billion, five hundred ninety-five million, three hundred seventy-two thousand, two hundred twenty-four".