66232630 has 16 divisors (see below), whose sum is σ = 122127264. Its totient is φ = 25846720.

The previous prime is 66232619. The next prime is 66232631. The reversal of 66232630 is 3623266.

It is a super-2 number, since 2×66232630² = 8773522553433800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66232631) 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, 80362 + ... + 81181.

It is an arithmetic number, because the mean of its divisors is an integer number (7632954).

Almost surely, 2^66232630 is an apocalyptic number.

66232630 is a deficient number, since it is larger than the sum of its proper divisors (55894634).

66232630 is a wasteful number, since it uses less digits than its factorization.

66232630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161591.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 66232630 is about 8138.3431974819. The cubic root of 66232630 is about 404.5982501861.

Adding to 66232630 its reverse (3623266), we get a palindrome (69855896).

The spelling of 66232630 in words is "sixty-six million, two hundred thirty-two thousand, six hundred thirty".