16523442127 has 16 divisors (see below), whose sum is σ = 17092892160. Its totient is φ = 15964093600.

The previous prime is 16523442097. The next prime is 16523442139. The reversal of 16523442127 is 72124432561.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16523442127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16523442157) 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, 3877524 + ... + 3881782.

It is an arithmetic number, because the mean of its divisors is an integer number (1068305760).

Almost surely, 2^16523442127 is an apocalyptic number.

16523442127 is a deficient number, since it is larger than the sum of its proper divisors (569450033).

16523442127 is a wasteful number, since it uses less digits than its factorization.

16523442127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5414.

The product of its digits is 80640, while the sum is 37.

Adding to 16523442127 its reverse (72124432561), we get a palindrome (88647874688).

The spelling of 16523442127 in words is "sixteen billion, five hundred twenty-three million, four hundred forty-two thousand, one hundred twenty-seven".