16189468905 has 16 divisors (see below), whose sum is σ = 26194199040. Its totient is φ = 8537367168.

The previous prime is 16189468901. The next prime is 16189468937. The reversal of 16189468905 is 50986498161.

It is not a de Polignac number, because 16189468905 - 2² = 16189468901 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16189468901) 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, 6062137 + ... + 6064806.

It is an arithmetic number, because the mean of its divisors is an integer number (1637137440).

Almost surely, 2^16189468905 is an apocalyptic number.

16189468905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16189468905 is a deficient number, since it is larger than the sum of its proper divisors (10004730135).

16189468905 is a wasteful number, since it uses less digits than its factorization.

16189468905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12127040.

The product of its (nonzero) digits is 3732480, while the sum is 57.

The spelling of 16189468905 in words is "sixteen billion, one hundred eighty-nine million, four hundred sixty-eight thousand, nine hundred five".