31661125226 has 32 divisors (see below), whose sum is σ = 50204199168. Its totient is φ = 14945673600.

The previous prime is 31661125183. The next prime is 31661125259. The reversal of 31661125226 is 62252116613.

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, 1076006 + ... + 1105038.

It is an arithmetic number, because the mean of its divisors is an integer number (1568881224).

Almost surely, 2^31661125226 is an apocalyptic number.

31661125226 is a deficient number, since it is larger than the sum of its proper divisors (18543073942).

31661125226 is a wasteful number, since it uses less digits than its factorization.

31661125226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29366.

The product of its digits is 25920, while the sum is 35.

The spelling of 31661125226 in words is "thirty-one billion, six hundred sixty-one million, one hundred twenty-five thousand, two hundred twenty-six".