66422466 has 36 divisors (see below), whose sum is σ = 158193126. Its totient is φ = 20127360.

The previous prime is 66422453. The next prime is 66422471.

66422466 is a `hidden beast` number, since 6 + 642 + 2 + 4 + 6 + 6 = 666.

66422466 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 49406841 + 17015625 = 7029^2 + 4125^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 66422466.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13071 + ... + 17426.

Almost surely, 2^66422466 is an apocalyptic number.

66422466 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

66422466 is an abundant number, since it is smaller than the sum of its proper divisors (91770660).

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

66422466 is a wasteful number, since it uses less digits than its factorization.

66422466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30527 (or 30513 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 66422466 is about 8149.9979141102. The cubic root of 66422466 is about 404.9844347013.

The spelling of 66422466 in words is "sixty-six million, four hundred twenty-two thousand, four hundred sixty-six".