166863162347 has 16 divisors (see below), whose sum is σ = 191577019392. Its totient is φ = 142368900480.

The previous prime is 166863162341. The next prime is 166863162359. The reversal of 166863162347 is 743261368661.

It is a cyclic number.

It is not a de Polignac number, because 166863162347 - 2⁴ = 166863162331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166863162341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3999368 + ... + 4040874.

It is an arithmetic number, because the mean of its divisors is an integer number (11973563712).

Almost surely, 2^166863162347 is an apocalyptic number.

166863162347 is a deficient number, since it is larger than the sum of its proper divisors (24713857045).

166863162347 is a wasteful number, since it uses less digits than its factorization.

166863162347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44138.

The product of its digits is 5225472, while the sum is 53.

The spelling of 166863162347 in words is "one hundred sixty-six billion, eight hundred sixty-three million, one hundred sixty-two thousand, three hundred forty-seven".