6664786922 has 16 divisors (see below), whose sum is σ = 10165197600. Its totient is φ = 3276432240.

The previous prime is 6664786897. The next prime is 6664786927. The reversal of 6664786922 is 2296874666.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6664786927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334229 + ... + 353607.

It is an arithmetic number, because the mean of its divisors is an integer number (635324850).

Almost surely, 2^6664786922 is an apocalyptic number.

6664786922 is a deficient number, since it is larger than the sum of its proper divisors (3500410678).

6664786922 is a wasteful number, since it uses less digits than its factorization.

6664786922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22261.

The product of its digits is 10450944, while the sum is 56.

The square root of 6664786922 is about 81638.1462430401. The cubic root of 6664786922 is about 1881.8951503883.

The spelling of 6664786922 in words is "six billion, six hundred sixty-four million, seven hundred eighty-six thousand, nine hundred twenty-two".