32666591897 has 2 divisors, whose sum is σ = 32666591898. Its totient is φ = 32666591896.

The previous prime is 32666591879. The next prime is 32666591911. The reversal of 32666591897 is 79819566623.

Together with previous prime (32666591879) 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., 32666586121 + 5776 = 180739^2 + 76^2 .

It is an emirp because it is prime and its reverse (79819566623) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32666591897 - 2⁸ = 32666591641 is a prime.

It is not a weakly prime, because it can be changed into another prime (32666591197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16333295948 + 16333295949.

It is an arithmetic number, because the mean of its divisors is an integer number (16333295949).

Almost surely, 2^32666591897 is an apocalyptic number.

It is an amenable number.

32666591897 is a deficient number, since it is larger than the sum of its proper divisors (1).

32666591897 is an equidigital number, since it uses as much as digits as its factorization.

32666591897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29393280, while the sum is 62.

The spelling of 32666591897 in words is "thirty-two billion, six hundred sixty-six million, five hundred ninety-one thousand, eight hundred ninety-seven".