22644582615643 has 2 divisors, whose sum is σ = 22644582615644. Its totient is φ = 22644582615642.

The previous prime is 22644582615617. The next prime is 22644582615703. The reversal of 22644582615643 is 34651628544622.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22644582615643 is a prime.

It is not a weakly prime, because it can be changed into another prime (22644582615043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11322291307821 + 11322291307822.

It is an arithmetic number, because the mean of its divisors is an integer number (11322291307822).

Almost surely, 2^{22644582615643} is an apocalyptic number.

22644582615643 is a deficient number, since it is larger than the sum of its proper divisors (1).

22644582615643 is an equidigital number, since it uses as much as digits as its factorization.

22644582615643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 66355200, while the sum is 58.

The spelling of 22644582615643 in words is "twenty-two trillion, six hundred forty-four billion, five hundred eighty-two million, six hundred fifteen thousand, six hundred forty-three".