22545572805 has 384 divisors, whose sum is σ = 53590118400. Its totient is φ = 8841498624.

The previous prime is 22545572789. The next prime is 22545572813. The reversal of 22545572805 is 50827554522.

22545572805 is a `hidden beast` number, since 22 + 54 + 5 + 572 + 8 + 0 + 5 = 666.

It is not a de Polignac number, because 22545572805 - 2⁴ = 22545572789 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 79666194 + ... + 79666476.

It is an arithmetic number, because the mean of its divisors is an integer number (139557600).

Almost surely, 2^22545572805 is an apocalyptic number.

It is an amenable number.

22545572805 is an abundant number, since it is smaller than the sum of its proper divisors (31044545595).

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

22545572805 is a wasteful number, since it uses less digits than its factorization.

22545572805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 1120000, while the sum is 45.

The spelling of 22545572805 in words is "twenty-two billion, five hundred forty-five million, five hundred seventy-two thousand, eight hundred five".