23221357568641 has 16 divisors (see below), whose sum is σ = 24632544153600. Its totient is φ = 21829722496848.

The previous prime is 23221357568639. The next prime is 23221357568719. The reversal of 23221357568641 is 14686575312232.

It is not a de Polignac number, because 23221357568641 - 2¹ = 23221357568639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23221357568041) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 7749721 + ... + 10319926.

It is an arithmetic number, because the mean of its divisors is an integer number (1539534009600).

Almost surely, 2^{23221357568641} is an apocalyptic number.

It is an amenable number.

23221357568641 is a deficient number, since it is larger than the sum of its proper divisors (1411186584959).

23221357568641 is a wasteful number, since it uses less digits than its factorization.

23221357568641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18070188.

The product of its digits is 14515200, while the sum is 55.

The spelling of 23221357568641 in words is "twenty-three trillion, two hundred twenty-one billion, three hundred fifty-seven million, five hundred sixty-eight thousand, six hundred forty-one".