66083959 has 2 divisors, whose sum is σ = 66083960. Its totient is φ = 66083958.

The previous prime is 66083921. The next prime is 66083977. The reversal of 66083959 is 95938066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66083959 - 2¹³ = 66075767 is a prime.

It is a super-2 number, since 2×66083959² = 8734179274227362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66083359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33041979 + 33041980.

It is an arithmetic number, because the mean of its divisors is an integer number (33041980).

Almost surely, 2^66083959 is an apocalyptic number.

66083959 is a deficient number, since it is larger than the sum of its proper divisors (1).

66083959 is an equidigital number, since it uses as much as digits as its factorization.

66083959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 66083959 is about 8129.2040815814. The cubic root of 66083959 is about 404.2952923137.

The spelling of 66083959 in words is "sixty-six million, eighty-three thousand, nine hundred fifty-nine".