6815147966 has 16 divisors (see below), whose sum is σ = 11154578688. Its totient is φ = 3097095000.

The previous prime is 6815147947. The next prime is 6815147971. The reversal of 6815147966 is 6697415186.

It is a Curzon number.

It is a congruent 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, 71921 + ... + 137123.

It is an arithmetic number, because the mean of its divisors is an integer number (697161168).

Almost surely, 2^6815147966 is an apocalyptic number.

6815147966 is a deficient number, since it is larger than the sum of its proper divisors (4339430722).

6815147966 is a wasteful number, since it uses less digits than its factorization.

6815147966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69967.

The product of its digits is 2177280, while the sum is 53.

The square root of 6815147966 is about 82553.9094531567. The cubic root of 6815147966 is about 1895.9422141038.

The spelling of 6815147966 in words is "six billion, eight hundred fifteen million, one hundred forty-seven thousand, nine hundred sixty-six".