66112441 has 2 divisors, whose sum is σ = 66112442. Its totient is φ = 66112440.

The previous prime is 66112433. The next prime is 66112447. The reversal of 66112441 is 14421166.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46717225 + 19395216 = 6835^2 + 4404^2 .

It is a cyclic number.

It is not a de Polignac number, because 66112441 - 2³ = 66112433 is a prime.

It is not a weakly prime, because it can be changed into another prime (66112447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33056220 + 33056221.

It is an arithmetic number, because the mean of its divisors is an integer number (33056221).

Almost surely, 2^66112441 is an apocalyptic number.

It is an amenable number.

66112441 is a deficient number, since it is larger than the sum of its proper divisors (1).

66112441 is an equidigital number, since it uses as much as digits as its factorization.

66112441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 25.

The square root of 66112441 is about 8130.9557248825. The cubic root of 66112441 is about 404.3533673481.

The spelling of 66112441 in words is "sixty-six million, one hundred twelve thousand, four hundred forty-one".