22640244455 has 8 divisors (see below), whose sum is σ = 27540462192. Its totient is φ = 17864083008.

The previous prime is 22640244449. The next prime is 22640244457. The reversal of 22640244455 is 55444204622.

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

It is a cyclic number.

It is not a de Polignac number, because 22640244455 - 2¹⁶ = 22640178919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22640244457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31013669 + ... + 31014398.

It is an arithmetic number, because the mean of its divisors is an integer number (3442557774).

Almost surely, 2^22640244455 is an apocalyptic number.

22640244455 is a deficient number, since it is larger than the sum of its proper divisors (4900217737).

22640244455 is an equidigital number, since it uses as much as digits as its factorization.

22640244455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62028145.

The product of its (nonzero) digits is 307200, while the sum is 38.

The spelling of 22640244455 in words is "twenty-two billion, six hundred forty million, two hundred forty-four thousand, four hundred fifty-five".