22523760720 has 100 divisors (see below), whose sum is σ = 78228380340. Its totient is φ = 6006334464.

The previous prime is 22523760709. The next prime is 22523760739. The reversal of 22523760720 is 2706732522.

22523760720 is a `hidden beast` number, since 2 + 2 + 5 + 23 + 7 + 607 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12949529616 + 9574231104 = 113796^2 + 97848^2 .

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 19 ways as a sum of consecutive naturals, for example, 1731465 + ... + 1744424.

Almost surely, 2^22523760720 is an apocalyptic number.

22523760720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22523760720 is an abundant number, since it is smaller than the sum of its proper divisors (55704619620).

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

22523760720 is a wasteful number, since it uses less digits than its factorization.

22523760720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3475914 (or 3475899 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The spelling of 22523760720 in words is "twenty-two billion, five hundred twenty-three million, seven hundred sixty thousand, seven hundred twenty".