16322561023 has 2 divisors, whose sum is σ = 16322561024. Its totient is φ = 16322561022.

The previous prime is 16322560951. The next prime is 16322561027. The reversal of 16322561023 is 32016522361.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16322561023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16322561027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8161280511 + 8161280512.

It is an arithmetic number, because the mean of its divisors is an integer number (8161280512).

Almost surely, 2^16322561023 is an apocalyptic number.

16322561023 is a deficient number, since it is larger than the sum of its proper divisors (1).

16322561023 is an equidigital number, since it uses as much as digits as its factorization.

16322561023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 16322561023 in words is "sixteen billion, three hundred twenty-two million, five hundred sixty-one thousand, twenty-three".