2665242342013 has 2 divisors, whose sum is σ = 2665242342014. Its totient is φ = 2665242342012.

The previous prime is 2665242342001. The next prime is 2665242342023. The reversal of 2665242342013 is 3102432425662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2496516921369 + 168725420644 = 1580037^2 + 410762^2 .

It is a cyclic number.

It is not a de Polignac number, because 2665242342013 - 2⁹ = 2665242341501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2665242342023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1332621171006 + 1332621171007.

It is an arithmetic number, because the mean of its divisors is an integer number (1332621171007).

Almost surely, 2^{2665242342013} is an apocalyptic number.

It is an amenable number.

2665242342013 is a deficient number, since it is larger than the sum of its proper divisors (1).

2665242342013 is an equidigital number, since it uses as much as digits as its factorization.

2665242342013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 40.

Adding to 2665242342013 its reverse (3102432425662), we get a palindrome (5767674767675).

The spelling of 2665242342013 in words is "two trillion, six hundred sixty-five billion, two hundred forty-two million, three hundred forty-two thousand, thirteen".