66059459 has 2 divisors, whose sum is σ = 66059460. Its totient is φ = 66059458.

The previous prime is 66059453. The next prime is 66059479. The reversal of 66059459 is 95495066.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66059459 is a prime.

It is not a weakly prime, because it can be changed into another prime (66059453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33029729 + 33029730.

It is an arithmetic number, because the mean of its divisors is an integer number (33029730).

Almost surely, 2^66059459 is an apocalyptic number.

66059459 is a deficient number, since it is larger than the sum of its proper divisors (1).

66059459 is an equidigital number, since it uses as much as digits as its factorization.

66059459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 291600, while the sum is 44.

The square root of 66059459 is about 8127.6970292943. The cubic root of 66059459 is about 404.2453232584.

The spelling of 66059459 in words is "sixty-six million, fifty-nine thousand, four hundred fifty-nine".