166029666 has 48 divisors (see below), whose sum is σ = 370246464. Its totient is φ = 49588000.

The previous prime is 166029659. The next prime is 166029679. The reversal of 166029666 is 666920661.

166029666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49936 + ... + 53156.

It is an arithmetic number, because the mean of its divisors is an integer number (7713468).

Almost surely, 2^166029666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166029666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185123232).

166029666 is an abundant number, since it is smaller than the sum of its proper divisors (204216798).

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

166029666 is a wasteful number, since it uses less digits than its factorization.

166029666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3319 (or 3308 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 166029666 is about 12885.2499393687. The cubic root of 166029666 is about 549.6192030797.

The spelling of 166029666 in words is "one hundred sixty-six million, twenty-nine thousand, six hundred sixty-six".