16044723601 has 4 divisors (see below), whose sum is σ = 16417856752. Its totient is φ = 15671590452.

The previous prime is 16044723587. The next prime is 16044723613. The reversal of 16044723601 is 10632744061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16044723601 - 2⁷ = 16044723473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16044723701) 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, 186566511 + ... + 186566596.

It is an arithmetic number, because the mean of its divisors is an integer number (4104464188).

Almost surely, 2^16044723601 is an apocalyptic number.

It is an amenable number.

16044723601 is a deficient number, since it is larger than the sum of its proper divisors (373133151).

16044723601 is an equidigital number, since it uses as much as digits as its factorization.

16044723601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373133150.

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 16044723601 in words is "sixteen billion, forty-four million, seven hundred twenty-three thousand, six hundred one".