223454622656591 has 2 divisors, whose sum is σ = 223454622656592. Its totient is φ = 223454622656590.

The previous prime is 223454622656543. The next prime is 223454622656599. The reversal of 223454622656591 is 195656226454322.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223454622656591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223454622656599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111727311328295 + 111727311328296.

It is an arithmetic number, because the mean of its divisors is an integer number (111727311328296).

Almost surely, 2^{223454622656591} is an apocalyptic number.

223454622656591 is a deficient number, since it is larger than the sum of its proper divisors (1).

223454622656591 is an equidigital number, since it uses as much as digits as its factorization.

223454622656591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624000, while the sum is 62.

The spelling of 223454622656591 in words is "two hundred twenty-three trillion, four hundred fifty-four billion, six hundred twenty-two million, six hundred fifty-six thousand, five hundred ninety-one".