16666262640163 has 2 divisors, whose sum is σ = 16666262640164. Its totient is φ = 16666262640162.

The previous prime is 16666262640089. The next prime is 16666262640179. The reversal of 16666262640163 is 36104626266661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16666262640163 - 2²⁵ = 16666229085731 is a prime.

It is not a weakly prime, because it can be changed into another prime (16666262680163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8333131320081 + 8333131320082.

It is an arithmetic number, because the mean of its divisors is an integer number (8333131320082).

Almost surely, 2^{16666262640163} is an apocalyptic number.

16666262640163 is a deficient number, since it is larger than the sum of its proper divisors (1).

16666262640163 is an equidigital number, since it uses as much as digits as its factorization.

16666262640163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13436928, while the sum is 55.

The spelling of 16666262640163 in words is "sixteen trillion, six hundred sixty-six billion, two hundred sixty-two million, six hundred forty thousand, one hundred sixty-three".