166346706 has 16 divisors (see below), whose sum is σ = 337251744. Its totient is φ = 54689184.

The previous prime is 166346693. The next prime is 166346707. The reversal of 166346706 is 607643661.

It is a happy number.

It is a super-3 number, since 3×166346706³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (166346707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189456 + ... + 190331.

It is an arithmetic number, because the mean of its divisors is an integer number (21078234).

Almost surely, 2^166346706 is an apocalyptic number.

166346706 is an abundant number, since it is smaller than the sum of its proper divisors (170905038).

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

166346706 is a wasteful number, since it uses less digits than its factorization.

166346706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379865.

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 166346706 is about 12897.5465108679. The cubic root of 166346706 is about 549.9688202710.

The spelling of 166346706 in words is "one hundred sixty-six million, three hundred forty-six thousand, seven hundred six".