91106066279 has 2 divisors, whose sum is σ = 91106066280. Its totient is φ = 91106066278.

The previous prime is 91106066251. The next prime is 91106066281. The reversal of 91106066279 is 97266060119.

It is a strong prime.

It is an emirp because it is prime and its reverse (97266060119) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91106066279 - 2¹⁶ = 91106000743 is a prime.

Together with 91106066281, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91106006279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45553033139 + 45553033140.

It is an arithmetic number, because the mean of its divisors is an integer number (45553033140).

Almost surely, 2^91106066279 is an apocalyptic number.

91106066279 is a deficient number, since it is larger than the sum of its proper divisors (1).

91106066279 is an equidigital number, since it uses as much as digits as its factorization.

91106066279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 47.

The spelling of 91106066279 in words is "ninety-one billion, one hundred six million, sixty-six thousand, two hundred seventy-nine".