31668664070 has 16 divisors (see below), whose sum is σ = 57011972688. Its totient is φ = 12665604000.

The previous prime is 31668664063. The next prime is 31668664109. The reversal of 31668664070 is 7046686613.

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, 160181 + ... + 298320.

It is an arithmetic number, because the mean of its divisors is an integer number (3563248293).

Almost surely, 2^31668664070 is an apocalyptic number.

31668664070 is a deficient number, since it is larger than the sum of its proper divisors (25343308618).

31668664070 is a wasteful number, since it uses less digits than its factorization.

31668664070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465415.

The product of its (nonzero) digits is 870912, while the sum is 47.

The spelling of 31668664070 in words is "thirty-one billion, six hundred sixty-eight million, six hundred sixty-four thousand, seventy".