66807043 has 2 divisors, whose sum is σ = 66807044. Its totient is φ = 66807042.

The previous prime is 66807029. The next prime is 66807047. The reversal of 66807043 is 34070866.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66807043 - 2⁵ = 66807011 is a prime.

It is not a weakly prime, because it can be changed into another prime (66807047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33403521 + 33403522.

It is an arithmetic number, because the mean of its divisors is an integer number (33403522).

Almost surely, 2^66807043 is an apocalyptic number.

66807043 is a deficient number, since it is larger than the sum of its proper divisors (1).

66807043 is an equidigital number, since it uses as much as digits as its factorization.

66807043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 66807043 is about 8173.5575485831. The cubic root of 66807043 is about 405.7645325883.

The spelling of 66807043 in words is "sixty-six million, eight hundred seven thousand, forty-three".