66959 has 2 divisors, whose sum is σ = 66960. Its totient is φ = 66958.

The previous prime is 66949. The next prime is 66973. The reversal of 66959 is 95966.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66959 - 2⁴ = 66943 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a plaindrome in base 6.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33479 + 33480.

It is an arithmetic number, because the mean of its divisors is an integer number (33480).

2⁶⁶⁹⁵⁹ is an apocalyptic number.

66959 is a deficient number, since it is larger than the sum of its proper divisors (1).

66959 is an equidigital number, since it uses as much as digits as its factorization.

66959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14580, while the sum is 35.

The square root of 66959 is about 258.7643715816. The cubic root of 66959 is about 40.6071945641.

The spelling of 66959 in words is "sixty-six thousand, nine hundred fifty-nine".