66026392513 has 2 divisors, whose sum is σ = 66026392514. Its totient is φ = 66026392512.

The previous prime is 66026392507. The next prime is 66026392517. The reversal of 66026392513 is 31529362066.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64885844529 + 1140547984 = 254727^2 + 33772^2 .

It is a cyclic number.

It is not a de Polignac number, because 66026392513 - 2³³ = 57436457921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66026392513.

It is not a weakly prime, because it can be changed into another prime (66026392517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33013196256 + 33013196257.

It is an arithmetic number, because the mean of its divisors is an integer number (33013196257).

Almost surely, 2^66026392513 is an apocalyptic number.

It is an amenable number.

66026392513 is a deficient number, since it is larger than the sum of its proper divisors (1).

66026392513 is an equidigital number, since it uses as much as digits as its factorization.

66026392513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 43.

The spelling of 66026392513 in words is "sixty-six billion, twenty-six million, three hundred ninety-two thousand, five hundred thirteen".