6591144959 has 4 divisors (see below), whose sum is σ = 7532737104. Its totient is φ = 5649552816.

The previous prime is 6591144947. The next prime is 6591145003. The reversal of 6591144959 is 9594411956.

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 6591144959 - 2⁴ = 6591144943 is a prime.

It is a super-2 number, since 2×6591144959² = 86886383741102223362, which contains 22 as substring.

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 6591144959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6591144929) 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, 470796062 + ... + 470796075.

It is an arithmetic number, because the mean of its divisors is an integer number (1883184276).

Almost surely, 2^6591144959 is an apocalyptic number.

6591144959 is a deficient number, since it is larger than the sum of its proper divisors (941592145).

6591144959 is an equidigital number, since it uses as much as digits as its factorization.

6591144959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941592144.

The product of its digits is 1749600, while the sum is 53.

The square root of 6591144959 is about 81185.8667441569. The cubic root of 6591144959 is about 1874.9381866674.

The spelling of 6591144959 in words is "six billion, five hundred ninety-one million, one hundred forty-four thousand, nine hundred fifty-nine".