16345824427 has 4 divisors (see below), whose sum is σ = 16356558600. Its totient is φ = 16335090256.

The previous prime is 16345824361. The next prime is 16345824487. The reversal of 16345824427 is 72442854361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72442854361 = 193 ⋅375351577.

It is a cyclic number.

It is not a de Polignac number, because 16345824427 - 2²⁷ = 16211606699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16345824487) 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, 5364802 + ... + 5367847.

It is an arithmetic number, because the mean of its divisors is an integer number (4089139650).

Almost surely, 2^16345824427 is an apocalyptic number.

16345824427 is a deficient number, since it is larger than the sum of its proper divisors (10734173).

16345824427 is a wasteful number, since it uses less digits than its factorization.

16345824427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10734172.

The product of its digits is 1290240, while the sum is 46.

The spelling of 16345824427 in words is "sixteen billion, three hundred forty-five million, eight hundred twenty-four thousand, four hundred twenty-seven".