66233113 has 2 divisors, whose sum is σ = 66233114. Its totient is φ = 66233112.

The previous prime is 66233059. The next prime is 66233117. The reversal of 66233113 is 31133266.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37417689 + 28815424 = 6117^2 + 5368^2 .

It is a cyclic number.

It is not a de Polignac number, because 66233113 - 2⁹ = 66232601 is a prime.

It is not a weakly prime, because it can be changed into another prime (66233117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33116556 + 33116557.

It is an arithmetic number, because the mean of its divisors is an integer number (33116557).

Almost surely, 2^66233113 is an apocalyptic number.

It is an amenable number.

66233113 is a deficient number, since it is larger than the sum of its proper divisors (1).

66233113 is an equidigital number, since it uses as much as digits as its factorization.

66233113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 25.

The square root of 66233113 is about 8138.3728717723. The cubic root of 66233113 is about 404.5992336916.

Adding to 66233113 its reverse (31133266), we get a palindrome (97366379).

The spelling of 66233113 in words is "sixty-six million, two hundred thirty-three thousand, one hundred thirteen".