16202116170857 has 2 divisors, whose sum is σ = 16202116170858. Its totient is φ = 16202116170856.

The previous prime is 16202116170841. The next prime is 16202116170871. The reversal of 16202116170857 is 75807161120261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15694995579481 + 507120591376 = 3961691^2 + 712124^2 .

It is a cyclic number.

It is not a de Polignac number, because 16202116170857 - 2⁴ = 16202116170841 is a prime.

It is a super-2 number, since 2×16202116170857² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16202116170557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8101058085428 + 8101058085429.

It is an arithmetic number, because the mean of its divisors is an integer number (8101058085429).

Almost surely, 2^{16202116170857} is an apocalyptic number.

It is an amenable number.

16202116170857 is a deficient number, since it is larger than the sum of its proper divisors (1).

16202116170857 is an equidigital number, since it uses as much as digits as its factorization.

16202116170857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 47.

The spelling of 16202116170857 in words is "sixteen trillion, two hundred two billion, one hundred sixteen million, one hundred seventy thousand, eight hundred fifty-seven".