16244671589 has 4 divisors (see below), whose sum is σ = 17200240524. Its totient is φ = 15289102656.

The previous prime is 16244671579. The next prime is 16244671591. The reversal of 16244671589 is 98517644261.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8638215364 + 7606456225 = 92942^2 + 87215^2 .

It is a cyclic number.

It is not a de Polignac number, because 16244671589 - 2³² = 11949704293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16244671589.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16244671519) 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, 477784442 + ... + 477784475.

It is an arithmetic number, because the mean of its divisors is an integer number (4300060131).

Almost surely, 2^16244671589 is an apocalyptic number.

It is an amenable number.

16244671589 is a deficient number, since it is larger than the sum of its proper divisors (955568935).

16244671589 is an equidigital number, since it uses as much as digits as its factorization.

16244671589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955568934.

The product of its digits is 2903040, while the sum is 53.

The spelling of 16244671589 in words is "sixteen billion, two hundred forty-four million, six hundred seventy-one thousand, five hundred eighty-nine".