66701166 has 32 divisors (see below), whose sum is σ = 161429760. Its totient is φ = 17936256.

The previous prime is 66701147. The next prime is 66701179. The reversal of 66701166 is 66110766.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45996 + ... + 47423.

It is an arithmetic number, because the mean of its divisors is an integer number (5044680).

Almost surely, 2^66701166 is an apocalyptic number.

66701166 is an abundant number, since it is smaller than the sum of its proper divisors (94728594).

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

66701166 is a wasteful number, since it uses less digits than its factorization.

66701166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93448.

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

The square root of 66701166 is about 8167.0781801082. The cubic root of 66701166 is about 405.5500649479.

The spelling of 66701166 in words is "sixty-six million, seven hundred one thousand, one hundred sixty-six".