22561996374 has 12 divisors (see below), whose sum is σ = 48884325516. Its totient is φ = 7520665452.

The previous prime is 22561996363. The next prime is 22561996393. The reversal of 22561996374 is 47369916522.

22561996374 is a `hidden beast` number, since 2 + 2 + 561 + 9 + 9 + 6 + 3 + 74 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 22561996374.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 626722104 + ... + 626722139.

It is an arithmetic number, because the mean of its divisors is an integer number (4073693793).

Almost surely, 2^22561996374 is an apocalyptic number.

22561996374 is an abundant number, since it is smaller than the sum of its proper divisors (26322329142).

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

22561996374 is a wasteful number, since it uses less digits than its factorization.

22561996374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253444251 (or 1253444248 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 54.

The spelling of 22561996374 in words is "twenty-two billion, five hundred sixty-one million, nine hundred ninety-six thousand, three hundred seventy-four".