66000083 has 2 divisors, whose sum is σ = 66000084. Its totient is φ = 66000082.

The previous prime is 66000073. The next prime is 66000149. The reversal of 66000083 is 38000066.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66000083 - 2¹⁴ = 65983699 is a prime.

It is not a weakly prime, because it can be changed into another prime (66000013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33000041 + 33000042.

It is an arithmetic number, because the mean of its divisors is an integer number (33000042).

Almost surely, 2^66000083 is an apocalyptic number.

66000083 is a deficient number, since it is larger than the sum of its proper divisors (1).

66000083 is an equidigital number, since it uses as much as digits as its factorization.

66000083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 66000083 is about 8124.0435129312. The cubic root of 66000083 is about 404.1241714677.

The spelling of 66000083 in words is "sixty-six million, eighty-three", and thus it is an aban number and an uban number.