166066330 has 8 divisors (see below), whose sum is σ = 298919412. Its totient is φ = 66426528.

The previous prime is 166066309. The next prime is 166066357. The reversal of 166066330 is 33660661.

It can be written as a sum of positive squares in 2 ways, for example, as 158835609 + 7230721 = 12603^2 + 2689^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 166066292 and 166066301.

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, 8303307 + ... + 8303326.

Almost surely, 2^166066330 is an apocalyptic number.

166066330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166066330 is a deficient number, since it is larger than the sum of its proper divisors (132853082).

166066330 is a wasteful number, since it uses less digits than its factorization.

166066330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16606640.

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

The square root of 166066330 is about 12886.6725728560. The cubic root of 166066330 is about 549.6596572062.

The spelling of 166066330 in words is "one hundred sixty-six million, sixty-six thousand, three hundred thirty".