16388975998 has 16 divisors (see below), whose sum is σ = 24706347120. Its totient is φ = 8153611200.

The previous prime is 16388975983. The next prime is 16388976007. The reversal of 16388975998 is 89957988361.

It is a self number, because there is not a number n which added to its sum of digits gives 16388975998.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 377893 + ... + 419023.

It is an arithmetic number, because the mean of its divisors is an integer number (1544146695).

Almost surely, 2^16388975998 is an apocalyptic number.

16388975998 is a deficient number, since it is larger than the sum of its proper divisors (8317371122).

16388975998 is a wasteful number, since it uses less digits than its factorization.

16388975998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42123.

The product of its digits is 235146240, while the sum is 73.

The spelling of 16388975998 in words is "sixteen billion, three hundred eighty-eight million, nine hundred seventy-five thousand, nine hundred ninety-eight".