64066019 has 2 divisors, whose sum is σ = 64066020. Its totient is φ = 64066018.

The previous prime is 64066007. The next prime is 64066021. The reversal of 64066019 is 91066046.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64066019 - 2⁸ = 64065763 is a prime.

It is a super-2 number, since 2×64066019² = 8208909581016722, which contains 22 as substring.

Together with 64066021, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64066049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32033009 + 32033010.

It is an arithmetic number, because the mean of its divisors is an integer number (32033010).

Almost surely, 2^64066019 is an apocalyptic number.

64066019 is a deficient number, since it is larger than the sum of its proper divisors (1).

64066019 is an equidigital number, since it uses as much as digits as its factorization.

64066019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 64066019 is about 8004.1251239595. The cubic root of 64066019 is about 400.1374923176.

The spelling of 64066019 in words is "sixty-four million, sixty-six thousand, nineteen".