8648286666 has 16 divisors (see below), whose sum is σ = 17303081088. Its totient is φ = 2881677600.

The previous prime is 8648286643. The next prime is 8648286671. The reversal of 8648286666 is 6666828468.

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, 253795 + ... + 285846.

It is an arithmetic number, because the mean of its divisors is an integer number (1081442568).

Almost surely, 2^8648286666 is an apocalyptic number.

8648286666 is an abundant number, since it is smaller than the sum of its proper divisors (8654794422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8648286666 is a wasteful number, since it uses less digits than its factorization.

8648286666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542317.

The product of its digits is 31850496, while the sum is 60.

The square root of 8648286666 is about 92996.1647918881. The cubic root of 8648286666 is about 2052.6269448907.

The spelling of 8648286666 in words is "eight billion, six hundred forty-eight million, two hundred eighty-six thousand, six hundred sixty-six".