22729954723566 has 8 divisors (see below), whose sum is σ = 45459909447144. Its totient is φ = 7576651574520.

The previous prime is 22729954723549. The next prime is 22729954723571. The reversal of 22729954723566 is 66532745992722.

It is a sphenic number, since it is the product of 3 distinct primes.

22729954723566 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 22729954723566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1894162893625 + ... + 1894162893636.

It is an arithmetic number, because the mean of its divisors is an integer number (5682488680893).

Almost surely, 2^{22729954723566} is an apocalyptic number.

22729954723566 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22729954723566 is a wasteful number, since it uses less digits than its factorization.

22729954723566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3788325787266.

The product of its digits is 685843200, while the sum is 69.

The spelling of 22729954723566 in words is "twenty-two trillion, seven hundred twenty-nine billion, nine hundred fifty-four million, seven hundred twenty-three thousand, five hundred sixty-six".