2664637364663 has 4 divisors (see below), whose sum is σ = 2668243099320. Its totient is φ = 2661031630008.

The previous prime is 2664637364659. The next prime is 2664637364693. The reversal of 2664637364663 is 3664637364662.

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 2664637364663 - 2² = 2664637364659 is a prime.

It is a super-2 number, since 2×2664637364663² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2664637364596 and 2664637364605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664637364693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1802866220 + ... + 1802867697.

It is an arithmetic number, because the mean of its divisors is an integer number (667060774830).

Almost surely, 2^{2664637364663} is an apocalyptic number.

2664637364663 is a deficient number, since it is larger than the sum of its proper divisors (3605734657).

2664637364663 is an equidigital number, since it uses as much as digits as its factorization.

2664637364663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3605734656.

The product of its digits is 282175488, while the sum is 62.

Subtracting 2664637364663 from its reverse (3664637364662), we obtain a palindrome (999999999999).

The spelling of 2664637364663 in words is "two trillion, six hundred sixty-four billion, six hundred thirty-seven million, three hundred sixty-four thousand, six hundred sixty-three".