166863084313 has 4 divisors (see below), whose sum is σ = 166870177488. Its totient is φ = 166855991140.

The previous prime is 166863084257. The next prime is 166863084331. The reversal of 166863084313 is 313480368661.

166863084313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 166863084313 - 2³³ = 158273149721 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166863084373) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3511183 + ... + 3558388.

It is an arithmetic number, because the mean of its divisors is an integer number (41717544372).

Almost surely, 2^166863084313 is an apocalyptic number.

It is an amenable number.

166863084313 is a deficient number, since it is larger than the sum of its proper divisors (7093175).

166863084313 is an equidigital number, since it uses as much as digits as its factorization.

166863084313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7093174.

The product of its (nonzero) digits is 1492992, while the sum is 49.

The spelling of 166863084313 in words is "one hundred sixty-six billion, eight hundred sixty-three million, eighty-four thousand, three hundred thirteen".