166231266 has 16 divisors (see below), whose sum is σ = 349960800. Its totient is φ = 52494048.

The previous prime is 166231259. The next prime is 166231297. The reversal of 166231266 is 662132661.

166231266 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 728971 + ... + 729198.

It is an arithmetic number, because the mean of its divisors is an integer number (21872550).

Almost surely, 2^166231266 is an apocalyptic number.

166231266 is an abundant number, since it is smaller than the sum of its proper divisors (183729534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166231266 is a wasteful number, since it uses less digits than its factorization.

166231266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1458193.

The product of its digits is 15552, while the sum is 33.

The square root of 166231266 is about 12893.0704644006. The cubic root of 166231266 is about 549.8415697948.

The spelling of 166231266 in words is "one hundred sixty-six million, two hundred thirty-one thousand, two hundred sixty-six".