22603056721 has 8 divisors (see below), whose sum is σ = 26722825920. Its totient is φ = 18705977808.

The previous prime is 22603056647. The next prime is 22603056761. The reversal of 22603056721 is 12765030622.

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

It is not a de Polignac number, because 22603056721 - 2⁹ = 22603056209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22603056761) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 55672351 + ... + 55672756.

It is an arithmetic number, because the mean of its divisors is an integer number (3340353240).

Almost surely, 2^22603056721 is an apocalyptic number.

It is an amenable number.

22603056721 is a deficient number, since it is larger than the sum of its proper divisors (4119769199).

22603056721 is a wasteful number, since it uses less digits than its factorization.

22603056721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111345143.

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 22603056721 in words is "twenty-two billion, six hundred three million, fifty-six thousand, seven hundred twenty-one".