66343338 has 12 divisors (see below), whose sum is σ = 143743938. Its totient is φ = 22114440.

The previous prime is 66343337. The next prime is 66343351. The reversal of 66343338 is 83334366.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 54420129 + 11923209 = 7377^2 + 3453^2 .

It is not an unprimeable number, because it can be changed into a prime (66343337) 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, 1842853 + ... + 1842888.

Almost surely, 2^66343338 is an apocalyptic number.

66343338 is an abundant number, since it is smaller than the sum of its proper divisors (77400600).

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

66343338 is a wasteful number, since it uses less digits than its factorization.

66343338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3685749 (or 3685746 counting only the distinct ones).

The product of its digits is 93312, while the sum is 36.

The square root of 66343338 is about 8145.1419877127. The cubic root of 66343338 is about 404.8235536829.

The spelling of 66343338 in words is "sixty-six million, three hundred forty-three thousand, three hundred thirty-eight".