66441367 has 2 divisors, whose sum is σ = 66441368. Its totient is φ = 66441366.

The previous prime is 66441343. The next prime is 66441377. The reversal of 66441367 is 76314466.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66441367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66441317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33220683 + 33220684.

It is an arithmetic number, because the mean of its divisors is an integer number (33220684).

Almost surely, 2^66441367 is an apocalyptic number.

66441367 is a deficient number, since it is larger than the sum of its proper divisors (1).

66441367 is an equidigital number, since it uses as much as digits as its factorization.

66441367 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 37.

The square root of 66441367 is about 8151.1574024797. The cubic root of 66441367 is about 405.0228448222.

The spelling of 66441367 in words is "sixty-six million, four hundred forty-one thousand, three hundred sixty-seven".