16408008399 has 16 divisors (see below), whose sum is σ = 22033170432. Its totient is φ = 10861017888.

The previous prime is 16408008377. The next prime is 16408008401. The reversal of 16408008399 is 99380080461.

It is not a de Polignac number, because 16408008399 - 2⁸ = 16408008143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16408088399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224209 + ... + 288245.

It is an arithmetic number, because the mean of its divisors is an integer number (1377073152).

Almost surely, 2^16408008399 is an apocalyptic number.

16408008399 is a deficient number, since it is larger than the sum of its proper divisors (5625162033).

16408008399 is a wasteful number, since it uses less digits than its factorization.

16408008399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64646.

The product of its (nonzero) digits is 373248, while the sum is 48.

The spelling of 16408008399 in words is "sixteen billion, four hundred eight million, eight thousand, three hundred ninety-nine".