66242124233 has 2 divisors, whose sum is σ = 66242124234. Its totient is φ = 66242124232.

The previous prime is 66242124181. The next prime is 66242124283. The reversal of 66242124233 is 33242124266.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49280448064 + 16961676169 = 221992^2 + 130237^2 .

It is a cyclic number.

It is not a de Polignac number, because 66242124233 - 2¹² = 66242120137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66242124193 and 66242124202.

It is not a weakly prime, because it can be changed into another prime (66242124283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33121062116 + 33121062117.

It is an arithmetic number, because the mean of its divisors is an integer number (33121062117).

Almost surely, 2^66242124233 is an apocalyptic number.

It is an amenable number.

66242124233 is a deficient number, since it is larger than the sum of its proper divisors (1).

66242124233 is an equidigital number, since it uses as much as digits as its factorization.

66242124233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 35.

Adding to 66242124233 its reverse (33242124266), we get a palindrome (99484248499).

The spelling of 66242124233 in words is "sixty-six billion, two hundred forty-two million, one hundred twenty-four thousand, two hundred thirty-three".