22254720641 has 8 divisors (see below), whose sum is σ = 22601960040. Its totient is φ = 21910082688.

The previous prime is 22254720629. The next prime is 22254720769. The reversal of 22254720641 is 14602745222.

It can be written as a sum of positive squares in 4 ways, for example, as 9916176400 + 12338544241 = 99580^2 + 111079^2 .

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 22254720641 - 2¹⁸ = 22254458497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22254720841) 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, 633116 + ... + 667341.

It is an arithmetic number, because the mean of its divisors is an integer number (2825245005).

Almost surely, 2^22254720641 is an apocalyptic number.

It is an amenable number.

22254720641 is a deficient number, since it is larger than the sum of its proper divisors (347239399).

22254720641 is a wasteful number, since it uses less digits than its factorization.

22254720641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300723.

The product of its (nonzero) digits is 53760, while the sum is 35.

The spelling of 22254720641 in words is "twenty-two billion, two hundred fifty-four million, seven hundred twenty thousand, six hundred forty-one".