2665348769191 has 2 divisors, whose sum is σ = 2665348769192. Its totient is φ = 2665348769190.

The previous prime is 2665348769099. The next prime is 2665348769197. The reversal of 2665348769191 is 1919678435662.

2665348769191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2665348769191 - 2¹⁵ = 2665348736423 is a prime.

It is a super-2 number, since 2×2665348769191² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2665348769197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1332674384595 + 1332674384596.

It is an arithmetic number, because the mean of its divisors is an integer number (1332674384596).

Almost surely, 2^{2665348769191} is an apocalyptic number.

2665348769191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2665348769191 is an equidigital number, since it uses as much as digits as its factorization.

2665348769191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 117573120, while the sum is 67.

The spelling of 2665348769191 in words is "two trillion, six hundred sixty-five billion, three hundred forty-eight million, seven hundred sixty-nine thousand, one hundred ninety-one".