31474735666 has 16 divisors (see below), whose sum is σ = 51618837600. Its totient is φ = 14274830080.

The previous prime is 31474735651. The next prime is 31474735673. The reversal of 31474735666 is 66653747413.

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, 1583296 + ... + 1603051.

It is an arithmetic number, because the mean of its divisors is an integer number (3226177350).

Almost surely, 2^31474735666 is an apocalyptic number.

31474735666 is a deficient number, since it is larger than the sum of its proper divisors (20144101934).

31474735666 is a wasteful number, since it uses less digits than its factorization.

31474735666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3186809.

The product of its digits is 7620480, while the sum is 52.

The spelling of 31474735666 in words is "thirty-one billion, four hundred seventy-four million, seven hundred thirty-five thousand, six hundred sixty-six".