66263166 has 12 divisors (see below), whose sum is σ = 143570232. Its totient is φ = 22087716.

The previous prime is 66263123. The next prime is 66263167. The reversal of 66263166 is 66136266.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 66263166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66263167) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1840626 + ... + 1840661.

It is an arithmetic number, because the mean of its divisors is an integer number (11964186).

Almost surely, 2^66263166 is an apocalyptic number.

66263166 is an abundant number, since it is smaller than the sum of its proper divisors (77307066).

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

66263166 is a wasteful number, since it uses less digits than its factorization.

66263166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3681295 (or 3681292 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 66263166 is about 8140.2190388220. The cubic root of 66263166 is about 404.6604195124.

The spelling of 66263166 in words is "sixty-six million, two hundred sixty-three thousand, one hundred sixty-six".