6645034241 has 4 divisors (see below), whose sum is σ = 6757662000. Its totient is φ = 6532406484.

The previous prime is 6645034181. The next prime is 6645034261. The reversal of 6645034241 is 1424305466.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1424305466 = 2 ⋅712152733.

It is a cyclic number.

It is not a de Polignac number, because 6645034241 - 2⁶ = 6645034177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6645034261) 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, 56313791 + ... + 56313908.

It is an arithmetic number, because the mean of its divisors is an integer number (1689415500).

Almost surely, 2^6645034241 is an apocalyptic number.

It is an amenable number.

6645034241 is a deficient number, since it is larger than the sum of its proper divisors (112627759).

6645034241 is a wasteful number, since it uses less digits than its factorization.

6645034241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112627758.

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 6645034241 is about 81517.0794435129. The cubic root of 6645034241 is about 1880.0341627450.

The spelling of 6645034241 in words is "six billion, six hundred forty-five million, thirty-four thousand, two hundred forty-one".