16383999999 has 16 divisors (see below), whose sum is σ = 22556011520. Its totient is φ = 10567514880.

The previous prime is 16383999977. The next prime is 16384000001. The reversal of 16383999999 is 99999938361.

It is a Cunningham number, because it is equal to 128000²-1.

It is not a de Polignac number, because 16383999999 - 2⁹ = 16383999487 is a prime.

It is a Duffinian number.

16383999999 is a modest number, since divided by 999999 gives 16383 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 16383999999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16383999949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362664 + ... + 405330.

It is an arithmetic number, because the mean of its divisors is an integer number (1409750720).

Almost surely, 2^16383999999 is an apocalyptic number.

16383999999 is a deficient number, since it is larger than the sum of its proper divisors (6172011521).

16383999999 is a wasteful number, since it uses less digits than its factorization.

16383999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46830.

The product of its digits is 229582512, while the sum is 75.

The spelling of 16383999999 in words is "sixteen billion, three hundred eighty-three million, nine hundred ninety-nine thousand, nine hundred ninety-nine".