66677233 has 12 divisors (see below), whose sum is σ = 77690368. Its totient is φ = 56057040.

The previous prime is 66677231. The next prime is 66677263. The reversal of 66677233 is 33277666.

It is not a de Polignac number, because 66677233 - 2¹ = 66677231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66677231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17968 + ... + 21358.

Almost surely, 2^66677233 is an apocalyptic number.

It is an amenable number.

66677233 is a deficient number, since it is larger than the sum of its proper divisors (11013135).

66677233 is an equidigital number, since it uses as much as digits as its factorization.

66677233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3504 (or 3451 counting only the distinct ones).

The product of its digits is 190512, while the sum is 40.

The square root of 66677233 is about 8165.6128367686. The cubic root of 66677233 is about 405.5015540978.

The spelling of 66677233 in words is "sixty-six million, six hundred seventy-seven thousand, two hundred thirty-three".