2600064664 has 16 divisors (see below), whose sum is σ = 4900648320. Its totient is φ = 1293225120.

The previous prime is 2600064653. The next prime is 2600064667. The reversal of 2600064664 is 4664600062.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2600064667) 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, 849279 + ... + 852334.

It is an arithmetic number, because the mean of its divisors is an integer number (306290520).

Almost surely, 2^2600064664 is an apocalyptic number.

It is an amenable number.

2600064664 is a deficient number, since it is larger than the sum of its proper divisors (2300583656).

2600064664 is a wasteful number, since it uses less digits than its factorization.

2600064664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701810 (or 1701806 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 2600064664 is about 50990.8292146735. The cubic root of 2600064664 is about 1375.0802666531.

The spelling of 2600064664 in words is "two billion, six hundred million, sixty-four thousand, six hundred sixty-four".