22465643721823 has 2 divisors, whose sum is σ = 22465643721824. Its totient is φ = 22465643721822.

The previous prime is 22465643721809. The next prime is 22465643721827. The reversal of 22465643721823 is 32812734656422.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22465643721823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22465643721827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11232821860911 + 11232821860912.

It is an arithmetic number, because the mean of its divisors is an integer number (11232821860912).

Almost surely, 2^{22465643721823} is an apocalyptic number.

22465643721823 is a deficient number, since it is larger than the sum of its proper divisors (1).

22465643721823 is an equidigital number, since it uses as much as digits as its factorization.

22465643721823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23224320, while the sum is 55.

The spelling of 22465643721823 in words is "twenty-two trillion, four hundred sixty-five billion, six hundred forty-three million, seven hundred twenty-one thousand, eight hundred twenty-three".