16885989123 has 8 divisors (see below), whose sum is σ = 23291019600. Its totient is φ = 10869142368.

The previous prime is 16885989089. The next prime is 16885989161. The reversal of 16885989123 is 32198958861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16885989123 - 2¹² = 16885985027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16885989623) 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 7 ways as a sum of consecutive naturals, for example, 97045828 + ... + 97046001.

It is an arithmetic number, because the mean of its divisors is an integer number (2911377450).

Almost surely, 2^16885989123 is an apocalyptic number.

16885989123 is a deficient number, since it is larger than the sum of its proper divisors (6405030477).

16885989123 is a wasteful number, since it uses less digits than its factorization.

16885989123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194091861.

The product of its digits is 7464960, while the sum is 60.

The spelling of 16885989123 in words is "sixteen billion, eight hundred eighty-five million, nine hundred eighty-nine thousand, one hundred twenty-three".