20372304144 has 80 divisors (see below), whose sum is σ = 55766430720. Its totient is φ = 6386472960.

The previous prime is 20372304097. The next prime is 20372304149. The reversal of 20372304144 is 44140327302.

It is a super-2 number, since 2×20372304144² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20372304149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1157329 + ... + 1174799.

It is an arithmetic number, because the mean of its divisors is an integer number (697080384).

Almost surely, 2^20372304144 is an apocalyptic number.

20372304144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20372304144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27883215360).

20372304144 is an abundant number, since it is smaller than the sum of its proper divisors (35394126576).

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

20372304144 is a wasteful number, since it uses less digits than its factorization.

20372304144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18928 (or 18922 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 30.

The spelling of 20372304144 in words is "twenty billion, three hundred seventy-two million, three hundred four thousand, one hundred forty-four".