31368244666 has 32 divisors (see below), whose sum is σ = 52572123648. Its totient is φ = 13913832240.

The previous prime is 31368244651. The next prime is 31368244679. The reversal of 31368244666 is 66644286313.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1047595 + ... + 1077121.

It is an arithmetic number, because the mean of its divisors is an integer number (1642878864).

Almost surely, 2^31368244666 is an apocalyptic number.

31368244666 is a deficient number, since it is larger than the sum of its proper divisors (21203878982).

31368244666 is a wasteful number, since it uses less digits than its factorization.

31368244666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30706.

The product of its digits is 2985984, while the sum is 49.

The spelling of 31368244666 in words is "thirty-one billion, three hundred sixty-eight million, two hundred forty-four thousand, six hundred sixty-six".