16299699329 has 2 divisors, whose sum is σ = 16299699330. Its totient is φ = 16299699328.

The previous prime is 16299699319. The next prime is 16299699391. The reversal of 16299699329 is 92399699261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10312808704 + 5986890625 = 101552^2 + 77375^2 .

It is a cyclic number.

It is not a de Polignac number, because 16299699329 - 2²⁸ = 16031263873 is a prime.

It is not a weakly prime, because it can be changed into another prime (16299699319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8149849664 + 8149849665.

It is an arithmetic number, because the mean of its divisors is an integer number (8149849665).

Almost surely, 2^16299699329 is an apocalyptic number.

It is an amenable number.

16299699329 is a deficient number, since it is larger than the sum of its proper divisors (1).

16299699329 is an equidigital number, since it uses as much as digits as its factorization.

16299699329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25509168, while the sum is 65.

The spelling of 16299699329 in words is "sixteen billion, two hundred ninety-nine million, six hundred ninety-nine thousand, three hundred twenty-nine".