2163502166999 has 2 divisors, whose sum is σ = 2163502167000. Its totient is φ = 2163502166998.

The previous prime is 2163502166939. The next prime is 2163502167037. The reversal of 2163502166999 is 9996612053612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2163502166999 - 2⁸ = 2163502166743 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2163502166929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081751083499 + 1081751083500.

It is an arithmetic number, because the mean of its divisors is an integer number (1081751083500).

Almost surely, 2^{2163502166999} is an apocalyptic number.

2163502166999 is a deficient number, since it is larger than the sum of its proper divisors (1).

2163502166999 is an equidigital number, since it uses as much as digits as its factorization.

2163502166999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9447840, while the sum is 59.

The spelling of 2163502166999 in words is "two trillion, one hundred sixty-three billion, five hundred two million, one hundred sixty-six thousand, nine hundred ninety-nine".