16834340399 has 2 divisors, whose sum is σ = 16834340400. Its totient is φ = 16834340398.

The previous prime is 16834340363. The next prime is 16834340407. The reversal of 16834340399 is 99304343861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16834340399 - 2⁸ = 16834340143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16834340359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8417170199 + 8417170200.

It is an arithmetic number, because the mean of its divisors is an integer number (8417170200).

Almost surely, 2^16834340399 is an apocalyptic number.

16834340399 is a deficient number, since it is larger than the sum of its proper divisors (1).

16834340399 is an equidigital number, since it uses as much as digits as its factorization.

16834340399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1679616, while the sum is 50.

The spelling of 16834340399 in words is "sixteen billion, eight hundred thirty-four million, three hundred forty thousand, three hundred ninety-nine".