31082166680 has 16 divisors (see below), whose sum is σ = 69934875120. Its totient is φ = 12432866656.

The previous prime is 31082166653. The next prime is 31082166691. The reversal of 31082166680 is 8666128013.

It is a super-2 number, since 2×31082166680² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388527044 + ... + 388527123.

It is an arithmetic number, because the mean of its divisors is an integer number (4370929695).

Almost surely, 2^31082166680 is an apocalyptic number.

It is an amenable number.

31082166680 is an abundant number, since it is smaller than the sum of its proper divisors (38852708440).

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

31082166680 is a wasteful number, since it uses less digits than its factorization.

31082166680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777054178 (or 777054174 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The spelling of 31082166680 in words is "thirty-one billion, eighty-two million, one hundred sixty-six thousand, six hundred eighty".