16123155791 has 4 divisors (see below), whose sum is σ = 16124011632. Its totient is φ = 16122299952.

The previous prime is 16123155767. The next prime is 16123155803. The reversal of 16123155791 is 19755132161.

16123155791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19755132161 = 103069 ⋅191669.

It is a cyclic number.

It is not a de Polignac number, because 16123155791 - 2²⁶ = 16056046927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16123155721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399011 + ... + 437556.

It is an arithmetic number, because the mean of its divisors is an integer number (4031002908).

Almost surely, 2^16123155791 is an apocalyptic number.

16123155791 is a deficient number, since it is larger than the sum of its proper divisors (855841).

16123155791 is an equidigital number, since it uses as much as digits as its factorization.

16123155791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855840.

The product of its digits is 56700, while the sum is 41.

The spelling of 16123155791 in words is "sixteen billion, one hundred twenty-three million, one hundred fifty-five thousand, seven hundred ninety-one".