6342722666 has 16 divisors (see below), whose sum is σ = 11057532480. Its totient is φ = 2672236320.

The previous prime is 6342722587. The next prime is 6342722677. The reversal of 6342722666 is 6662272436.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3838595 + ... + 3840246.

It is an arithmetic number, because the mean of its divisors is an integer number (691095780).

Almost surely, 2^6342722666 is an apocalyptic number.

6342722666 is a deficient number, since it is larger than the sum of its proper divisors (4714809814).

6342722666 is a wasteful number, since it uses less digits than its factorization.

6342722666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7678909.

The product of its digits is 870912, while the sum is 44.

The square root of 6342722666 is about 79641.2121078026. The cubic root of 6342722666 is about 1851.0802228923.

The spelling of 6342722666 in words is "six billion, three hundred forty-two million, seven hundred twenty-two thousand, six hundred sixty-six".