66704411 has 2 divisors, whose sum is σ = 66704412. Its totient is φ = 66704410.

The previous prime is 66704387. The next prime is 66704423. The reversal of 66704411 is 11440766.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66704411 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (66704441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33352205 + 33352206.

It is an arithmetic number, because the mean of its divisors is an integer number (33352206).

Almost surely, 2^66704411 is an apocalyptic number.

66704411 is a deficient number, since it is larger than the sum of its proper divisors (1).

66704411 is an equidigital number, since it uses as much as digits as its factorization.

66704411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 66704411 is about 8167.2768411509. The cubic root of 66704411 is about 405.5566414877.

The spelling of 66704411 in words is "sixty-six million, seven hundred four thousand, four hundred eleven".