22544513156 has 48 divisors (see below), whose sum is σ = 45450961920. Its totient is φ = 9676836000.

The previous prime is 22544513149. The next prime is 22544513219. The reversal of 22544513156 is 65131544522.

It is a Harshad number since it is a multiple of its sum of digits (38).

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, 216641 + ... + 303351.

It is an arithmetic number, because the mean of its divisors is an integer number (946895040).

Almost surely, 2^22544513156 is an apocalyptic number.

It is an amenable number.

22544513156 is an abundant number, since it is smaller than the sum of its proper divisors (22906448764).

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

22544513156 is a wasteful number, since it uses less digits than its factorization.

22544513156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87056 (or 87054 counting only the distinct ones).

The product of its digits is 144000, while the sum is 38.

The spelling of 22544513156 in words is "twenty-two billion, five hundred forty-four million, five hundred thirteen thousand, one hundred fifty-six".