2663644360441 has 4 divisors (see below), whose sum is σ = 2779454984832. Its totient is φ = 2547833736052.

The previous prime is 2663644360423. The next prime is 2663644360471. The reversal of 2663644360441 is 1440634463662.

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 a cyclic number.

It is not a de Polignac number, because 2663644360441 - 2²⁵ = 2663610806009 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2663644360471) 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, 57905312161 + ... + 57905312206.

It is an arithmetic number, because the mean of its divisors is an integer number (694863746208).

Almost surely, 2^{2663644360441} is an apocalyptic number.

It is an amenable number.

2663644360441 is a deficient number, since it is larger than the sum of its proper divisors (115810624391).

2663644360441 is a wasteful number, since it uses less digits than its factorization.

2663644360441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115810624390.

The product of its (nonzero) digits is 5971968, while the sum is 49.

The spelling of 2663644360441 in words is "two trillion, six hundred sixty-three billion, six hundred forty-four million, three hundred sixty thousand, four hundred forty-one".