2664647464663 has 8 divisors (see below), whose sum is σ = 2666483031600. Its totient is φ = 2662812135168.

The previous prime is 2664647464511. The next prime is 2664647464691. The reversal of 2664647464663 is 3664647464662.

2664647464663 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 2664647464663 - 2⁹ = 2664647464151 is a prime.

It is a super-2 number, since 2×2664647464663² (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 = 2664647464595 and 2664647464604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664647434663) 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, 26392743 + ... + 26493511.

It is an arithmetic number, because the mean of its divisors is an integer number (333310378950).

Almost surely, 2^{2664647464663} is an apocalyptic number.

2664647464663 is a deficient number, since it is larger than the sum of its proper divisors (1835566937).

2664647464663 is a wasteful number, since it uses less digits than its factorization.

2664647464663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118721.

The product of its digits is 501645312, while the sum is 64.

Subtracting 2664647464663 from its reverse (3664647464662), we obtain a palindrome (999999999999).

The spelling of 2664647464663 in words is "two trillion, six hundred sixty-four billion, six hundred forty-seven million, four hundred sixty-four thousand, six hundred sixty-three".