16238133689 has 8 divisors (see below), whose sum is σ = 16435491072. Its totient is φ = 16041888720.

The previous prime is 16238133679. The next prime is 16238133697. The reversal of 16238133689 is 98633183261.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16238133689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16238133629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248714 + ... + 307139.

It is an arithmetic number, because the mean of its divisors is an integer number (2054436384).

Almost surely, 2^16238133689 is an apocalyptic number.

It is an amenable number.

16238133689 is a deficient number, since it is larger than the sum of its proper divisors (197357383).

16238133689 is a wasteful number, since it uses less digits than its factorization.

16238133689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556207.

The product of its digits is 1119744, while the sum is 50.

The spelling of 16238133689 in words is "sixteen billion, two hundred thirty-eight million, one hundred thirty-three thousand, six hundred eighty-nine".