16573623863 has 2 divisors, whose sum is σ = 16573623864. Its totient is φ = 16573623862.

The previous prime is 16573623761. The next prime is 16573623883. The reversal of 16573623863 is 36832637561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16573623863 - 2⁸ = 16573623607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16573623883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8286811931 + 8286811932.

It is an arithmetic number, because the mean of its divisors is an integer number (8286811932).

Almost surely, 2^16573623863 is an apocalyptic number.

16573623863 is a deficient number, since it is larger than the sum of its proper divisors (1).

16573623863 is an equidigital number, since it uses as much as digits as its factorization.

16573623863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3265920, while the sum is 50.

The spelling of 16573623863 in words is "sixteen billion, five hundred seventy-three million, six hundred twenty-three thousand, eight hundred sixty-three".