166363601 has 6 divisors (see below), whose sum is σ = 175580802. Its totient is φ = 157607280.

The previous prime is 166363573. The next prime is 166363627. The reversal of 166363601 is 106363661.

It can be written as a sum of positive squares in only one way, i.e., 128232976 + 38130625 = 11324^2 + 6175^2 .

It is not a de Polignac number, because 166363601 - 2⁶ = 166363537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (166363501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 230060 + ... + 230781.

It is an arithmetic number, because the mean of its divisors is an integer number (29263467).

Almost surely, 2^166363601 is an apocalyptic number.

It is an amenable number.

166363601 is a deficient number, since it is larger than the sum of its proper divisors (9217201).

166363601 is an equidigital number, since it uses as much as digits as its factorization.

166363601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460879 (or 460860 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 166363601 is about 12898.2014637701. The cubic root of 166363601 is about 549.9874388316.

The spelling of 166363601 in words is "one hundred sixty-six million, three hundred sixty-three thousand, six hundred one".