16890681299 has 2 divisors, whose sum is σ = 16890681300. Its totient is φ = 16890681298.

The previous prime is 16890681289. The next prime is 16890681319. The reversal of 16890681299 is 99218609861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16890681299 - 2⁸ = 16890681043 is a prime.

It is a super-2 number, since 2×16890681299² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16890681289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8445340649 + 8445340650.

It is an arithmetic number, because the mean of its divisors is an integer number (8445340650).

Almost surely, 2^16890681299 is an apocalyptic number.

16890681299 is a deficient number, since it is larger than the sum of its proper divisors (1).

16890681299 is an equidigital number, since it uses as much as digits as its factorization.

16890681299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3359232, while the sum is 59.

The spelling of 16890681299 in words is "sixteen billion, eight hundred ninety million, six hundred eighty-one thousand, two hundred ninety-nine".