22545907020 has 144 divisors (see below), whose sum is σ = 84171447360. Its totient is φ = 4756935168.

The previous prime is 22545906989. The next prime is 22545907031. The reversal of 22545907020 is 2070954522.

It is a happy number.

22545907020 is a `hidden beast` number, since 2 + 2 + 545 + 90 + 7 + 0 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 671835 + ... + 704594.

It is an arithmetic number, because the mean of its divisors is an integer number (584523940).

Almost surely, 2^22545907020 is an apocalyptic number.

22545907020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22545907020 is an abundant number, since it is smaller than the sum of its proper divisors (61625540340).

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

22545907020 is a wasteful number, since it uses less digits than its factorization.

22545907020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376464 (or 1376459 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 22545907020 in words is "twenty-two billion, five hundred forty-five million, nine hundred seven thousand, twenty".