166246863 has 16 divisors (see below), whose sum is σ = 224415360. Its totient is φ = 109461536.

The previous prime is 166246853. The next prime is 166246877. The reversal of 166246863 is 368642661.

It is a cyclic number.

It is not a de Polignac number, because 166246863 - 2⁶ = 166246799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166246853) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 149353 + ... + 150461.

It is an arithmetic number, because the mean of its divisors is an integer number (14025960).

Almost surely, 2^166246863 is an apocalyptic number.

166246863 is a deficient number, since it is larger than the sum of its proper divisors (58168497).

166246863 is a wasteful number, since it uses less digits than its factorization.

166246863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686.

The product of its digits is 248832, while the sum is 42.

The square root of 166246863 is about 12893.6753100115. The cubic root of 166246863 is about 549.8587659396.

The spelling of 166246863 in words is "one hundred sixty-six million, two hundred forty-six thousand, eight hundred sixty-three".