2604322664 has 16 divisors (see below), whose sum is σ = 4907895300. Its totient is φ = 1295550592.

The previous prime is 2604322661. The next prime is 2604322697. The reversal of 2604322664 is 4662234062.

It can be written as a sum of positive squares in 2 ways, for example, as 1645924900 + 958397764 = 40570^2 + 30958^2 .

It is not an unprimeable number, because it can be changed into a prime (2604322661) 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, 824669 + ... + 827820.

Almost surely, 2^2604322664 is an apocalyptic number.

It is an amenable number.

2604322664 is a deficient number, since it is larger than the sum of its proper divisors (2303572636).

2604322664 is a wasteful number, since it uses less digits than its factorization.

2604322664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652692 (or 1652688 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 35.

The square root of 2604322664 is about 51032.5647405654. The cubic root of 2604322664 is about 1375.8304913893.

The spelling of 2604322664 in words is "two billion, six hundred four million, three hundred twenty-two thousand, six hundred sixty-four".