166303066 has 8 divisors (see below), whose sum is σ = 250721460. Its totient is φ = 82729248.

The previous prime is 166303043. The next prime is 166303073. The reversal of 166303066 is 660303661.

It can be written as a sum of positive squares in 2 ways, for example, as 166023225 + 279841 = 12885^2 + 529^2 .

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

It is a super-2 number, since 2×166303066² = 55313419522000712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210651 + ... + 211438.

Almost surely, 2^166303066 is an apocalyptic number.

166303066 is a deficient number, since it is larger than the sum of its proper divisors (84418394).

166303066 is a wasteful number, since it uses less digits than its factorization.

166303066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422288.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 166303066 is about 12895.8546052598. The cubic root of 166303066 is about 549.9207224577.

The spelling of 166303066 in words is "one hundred sixty-six million, three hundred three thousand, sixty-six".