166861613282 has 16 divisors (see below), whose sum is σ = 308052209472. Its totient is φ = 66011187600.

The previous prime is 166861613239. The next prime is 166861613291. The reversal of 166861613282 is 282316168661.

166861613282 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 166861613282.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458410844 + ... + 458411207.

It is an arithmetic number, because the mean of its divisors is an integer number (19253263092).

Almost surely, 2^166861613282 is an apocalyptic number.

166861613282 is a deficient number, since it is larger than the sum of its proper divisors (141190596190).

166861613282 is a wasteful number, since it uses less digits than its factorization.

166861613282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916822073.

The product of its digits is 995328, while the sum is 50.

The spelling of 166861613282 in words is "one hundred sixty-six billion, eight hundred sixty-one million, six hundred thirteen thousand, two hundred eighty-two".