16089644001 has 4 divisors (see below), whose sum is σ = 21452858672. Its totient is φ = 10726429332.

The previous prime is 16089643993. The next prime is 16089644027. The reversal of 16089644001 is 10044698061.

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 not a de Polignac number, because 16089644001 - 2³ = 16089643993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16089644071) 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, 2681607331 + ... + 2681607336.

It is an arithmetic number, because the mean of its divisors is an integer number (5363214668).

Almost surely, 2^16089644001 is an apocalyptic number.

It is an amenable number.

16089644001 is a deficient number, since it is larger than the sum of its proper divisors (5363214671).

16089644001 is an equidigital number, since it uses as much as digits as its factorization.

16089644001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5363214670.

The product of its (nonzero) digits is 41472, while the sum is 39.

The spelling of 16089644001 in words is "sixteen billion, eighty-nine million, six hundred forty-four thousand, one".