66326412 has 18 divisors (see below), whose sum is σ = 154827484. Its totient is φ = 22099400.

The previous prime is 66326399. The next prime is 66326417. The reversal of 66326412 is 21462366.

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 66326412.

It is not an unprimeable number, because it can be changed into a prime (66326417) 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, 27037 + ... + 29387.

Almost surely, 2^66326412 is an apocalyptic number.

It is an amenable number.

66326412 is an abundant number, since it is smaller than the sum of its proper divisors (88501072).

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

66326412 is an equidigital number, since it uses as much as digits as its factorization.

66326412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4709 (or 2356 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

The square root of 66326412 is about 8144.1028971889. The cubic root of 66326412 is about 404.7891235680.

Adding to 66326412 its reverse (21462366), we get a palindrome (87788778).

The spelling of 66326412 in words is "sixty-six million, three hundred twenty-six thousand, four hundred twelve".