66013732559 has 2 divisors, whose sum is σ = 66013732560. Its totient is φ = 66013732558.

The previous prime is 66013732549. The next prime is 66013732567. The reversal of 66013732559 is 95523731066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66013732559 - 2⁸ = 66013732303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66013732549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33006866279 + 33006866280.

It is an arithmetic number, because the mean of its divisors is an integer number (33006866280).

Almost surely, 2^66013732559 is an apocalyptic number.

66013732559 is a deficient number, since it is larger than the sum of its proper divisors (1).

66013732559 is an equidigital number, since it uses as much as digits as its factorization.

66013732559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1020600, while the sum is 47.

The spelling of 66013732559 in words is "sixty-six billion, thirteen million, seven hundred thirty-two thousand, five hundred fifty-nine".