22991133654 has 24 divisors (see below), whose sum is σ = 52435919640. Its totient is φ = 7260357888.

The previous prime is 22991133611. The next prime is 22991133703. The reversal of 22991133654 is 45633119922.

22991133654 is a `hidden beast` number, since 229 + 91 + 1 + 336 + 5 + 4 = 666.

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 11 ways as a sum of consecutive naturals, for example, 33612427 + ... + 33613110.

It is an arithmetic number, because the mean of its divisors is an integer number (2184829985).

Almost surely, 2^22991133654 is an apocalyptic number.

22991133654 is an abundant number, since it is smaller than the sum of its proper divisors (29444785986).

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

22991133654 is a wasteful number, since it uses less digits than its factorization.

22991133654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67225564 (or 67225561 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The spelling of 22991133654 in words is "twenty-two billion, nine hundred ninety-one million, one hundred thirty-three thousand, six hundred fifty-four".