166325266 has 8 divisors (see below), whose sum is σ = 258091020. Its totient is φ = 80294928.

The previous prime is 166325227. The next prime is 166325267. The reversal of 166325266 is 662523661.

166325266 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 158231241 + 8094025 = 12579^2 + 2845^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (166325267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1433781 + ... + 1433896.

Almost surely, 2^166325266 is an apocalyptic number.

166325266 is a deficient number, since it is larger than the sum of its proper divisors (91765754).

166325266 is a wasteful number, since it uses less digits than its factorization.

166325266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2867708.

The product of its digits is 77760, while the sum is 37.

The square root of 166325266 is about 12896.7153182506. The cubic root of 166325266 is about 549.9451912326.

The spelling of 166325266 in words is "one hundred sixty-six million, three hundred twenty-five thousand, two hundred sixty-six".