2640064604 has 6 divisors (see below), whose sum is σ = 4620113064. Its totient is φ = 1320032300.

The previous prime is 2640064529. The next prime is 2640064621. The reversal of 2640064604 is 4064600462.

It is a super-2 number, since 2×2640064604² = 13939882226587353632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330008072 + ... + 330008079.

It is an arithmetic number, because the mean of its divisors is an integer number (770018844).

Almost surely, 2^2640064604 is an apocalyptic number.

It is an amenable number.

2640064604 is a deficient number, since it is larger than the sum of its proper divisors (1980048460).

2640064604 is a wasteful number, since it uses less digits than its factorization.

2640064604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660016155 (or 660016153 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 2640064604 is about 51381.5589876368. The cubic root of 2640064604 is about 1382.0959196725.

The spelling of 2640064604 in words is "two billion, six hundred forty million, sixty-four thousand, six hundred four".