16333142423 has 4 divisors (see below), whose sum is σ = 17589538008. Its totient is φ = 15076746840.

The previous prime is 16333142383. The next prime is 16333142477. The reversal of 16333142423 is 32424133361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16333142423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16333142423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16333142723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 628197773 + ... + 628197798.

It is an arithmetic number, because the mean of its divisors is an integer number (4397384502).

Almost surely, 2^16333142423 is an apocalyptic number.

16333142423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16333142423 is a deficient number, since it is larger than the sum of its proper divisors (1256395585).

16333142423 is a wasteful number, since it uses less digits than its factorization.

16333142423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256395584.

The product of its digits is 31104, while the sum is 32.

Adding to 16333142423 its reverse (32424133361), we get a palindrome (48757275784).

The spelling of 16333142423 in words is "sixteen billion, three hundred thirty-three million, one hundred forty-two thousand, four hundred twenty-three".