166710066 has 64 divisors (see below), whose sum is σ = 360806400. Its totient is φ = 51195456.

The previous prime is 166710053. The next prime is 166710073. The reversal of 166710066 is 660017661.

It is a super-2 number, since 2×166710066² = 55584492211448712, which contains 22 as substring.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 963556 + ... + 963728.

It is an arithmetic number, because the mean of its divisors is an integer number (5637600).

Almost surely, 2^166710066 is an apocalyptic number.

166710066 is an abundant number, since it is smaller than the sum of its proper divisors (194096334).

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

166710066 is a wasteful number, since it uses less digits than its factorization.

166710066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 166710066 is about 12911.6252269031. The cubic root of 166710066 is about 550.3689711507.

The spelling of 166710066 in words is "one hundred sixty-six million, seven hundred ten thousand, sixty-six".