6660065264 has 20 divisors (see below), whose sum is σ = 12914839320. Its totient is φ = 3327203520.

The previous prime is 6660065257. The next prime is 6660065273. The reversal of 6660065264 is 4625600666.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157334 + ... + 195125.

It is an arithmetic number, because the mean of its divisors is an integer number (645741966).

Almost surely, 2^6660065264 is an apocalyptic number.

It is an amenable number.

6660065264 is a deficient number, since it is larger than the sum of its proper divisors (6254774056).

6660065264 is a wasteful number, since it uses less digits than its factorization.

6660065264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353648 (or 353642 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 41.

The square root of 6660065264 is about 81609.2229101589. Note that the first 3 decimals coincide. The cubic root of 6660065264 is about 1881.4506368294.

The spelling of 6660065264 in words is "six billion, six hundred sixty million, sixty-five thousand, two hundred sixty-four".