31885266066 has 8 divisors (see below), whose sum is σ = 63770532144. Its totient is φ = 10628422020.

The previous prime is 31885266013. The next prime is 31885266103. The reversal of 31885266066 is 66066258813.

It is a sphenic number, since it is the product of 3 distinct primes.

31885266066 is an admirable number.

It is a super-2 number, since 2×31885266066² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2657105500 + ... + 2657105511.

It is an arithmetic number, because the mean of its divisors is an integer number (7971316518).

Almost surely, 2^31885266066 is an apocalyptic number.

31885266066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31885266066 is a wasteful number, since it uses less digits than its factorization.

31885266066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5314211016.

The product of its (nonzero) digits is 2488320, while the sum is 51.

The spelling of 31885266066 in words is "thirty-one billion, eight hundred eighty-five million, two hundred sixty-six thousand, sixty-six".