2631064664 has 16 divisors (see below), whose sum is σ = 4995693600. Its totient is φ = 1298879712.

The previous prime is 2631064661. The next prime is 2631064717. The reversal of 2631064664 is 4664601362.

It is a happy number.

2631064664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2631064664² = 13845002532298865792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2631064661) 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, 2080907 + ... + 2082170.

It is an arithmetic number, because the mean of its divisors is an integer number (312230850).

Almost surely, 2^2631064664 is an apocalyptic number.

It is an amenable number.

2631064664 is a deficient number, since it is larger than the sum of its proper divisors (2364628936).

2631064664 is a wasteful number, since it uses less digits than its factorization.

2631064664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4163162 (or 4163158 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 38.

The square root of 2631064664 is about 51293.9047451059. The cubic root of 2631064664 is about 1380.5236170225.

The spelling of 2631064664 in words is "two billion, six hundred thirty-one million, sixty-four thousand, six hundred sixty-four".