66584792093 has 2 divisors, whose sum is σ = 66584792094. Its totient is φ = 66584792092.

The previous prime is 66584792039. The next prime is 66584792101. The reversal of 66584792093 is 39029748566.

Together with previous prime (66584792039) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37936521529 + 28648270564 = 194773^2 + 169258^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66584792093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66584792033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33292396046 + 33292396047.

It is an arithmetic number, because the mean of its divisors is an integer number (33292396047).

Almost surely, 2^66584792093 is an apocalyptic number.

It is an amenable number.

66584792093 is a deficient number, since it is larger than the sum of its proper divisors (1).

66584792093 is an equidigital number, since it uses as much as digits as its factorization.

66584792093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19595520, while the sum is 59.

The spelling of 66584792093 in words is "sixty-six billion, five hundred eighty-four million, seven hundred ninety-two thousand, ninety-three".