16725671727 has 4 divisors (see below), whose sum is σ = 22300895640. Its totient is φ = 11150447816.

The previous prime is 16725671719. The next prime is 16725671759. The reversal of 16725671727 is 72717652761.

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

It is a cyclic number.

It is not a de Polignac number, because 16725671727 - 2³ = 16725671719 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16725671727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16725671717) 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, 2787611952 + ... + 2787611957.

It is an arithmetic number, because the mean of its divisors is an integer number (5575223910).

Almost surely, 2^16725671727 is an apocalyptic number.

16725671727 is a deficient number, since it is larger than the sum of its proper divisors (5575223913).

16725671727 is an equidigital number, since it uses as much as digits as its factorization.

16725671727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5575223912.

The product of its digits is 1728720, while the sum is 51.

The spelling of 16725671727 in words is "sixteen billion, seven hundred twenty-five million, six hundred seventy-one thousand, seven hundred twenty-seven".