6636945343 has 8 divisors (see below), whose sum is σ = 7914866688. Its totient is φ = 5441470584.

The previous prime is 6636945331. The next prime is 6636945361. The reversal of 6636945343 is 3435496366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6636945343 - 2⁵ = 6636945311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6636945323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20611471 + ... + 20611792.

It is an arithmetic number, because the mean of its divisors is an integer number (989358336).

Almost surely, 2^6636945343 is an apocalyptic number.

6636945343 is a deficient number, since it is larger than the sum of its proper divisors (1277921345).

6636945343 is a wasteful number, since it uses less digits than its factorization.

6636945343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41223293.

The product of its digits is 4199040, while the sum is 49.

The square root of 6636945343 is about 81467.4495918462. The cubic root of 6636945343 is about 1879.2710074432.

The spelling of 6636945343 in words is "six billion, six hundred thirty-six million, nine hundred forty-five thousand, three hundred forty-three".