66012233 has 8 divisors (see below), whose sum is σ = 75495168. Its totient is φ = 56542464.

The previous prime is 66012223. The next prime is 66012257. The reversal of 66012233 is 33221066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66012233 - 2⁶ = 66012169 is a prime.

It is a super-2 number, since 2×66012233² = 8715229811292578, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66012199 and 66012208.

It is not an unprimeable number, because it can be changed into a prime (66012203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12560 + ... + 17022.

It is an arithmetic number, because the mean of its divisors is an integer number (9436896).

Almost surely, 2^66012233 is an apocalyptic number.

It is an amenable number.

66012233 is a deficient number, since it is larger than the sum of its proper divisors (9482935).

66012233 is a wasteful number, since it uses less digits than its factorization.

66012233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6583.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 66012233 is about 8124.7912588571. The cubic root of 66012233 is about 404.1489684436.

Adding to 66012233 its reverse (33221066), we get a palindrome (99233299).

The spelling of 66012233 in words is "sixty-six million, twelve thousand, two hundred thirty-three".