2160252269257 has 2 divisors, whose sum is σ = 2160252269258. Its totient is φ = 2160252269256.

The previous prime is 2160252269251. The next prime is 2160252269291. The reversal of 2160252269257 is 7529622520612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1162538960521 + 997713308736 = 1078211^2 + 998856^2 .

It is a cyclic number.

It is not a de Polignac number, because 2160252269257 - 2³¹ = 2158104785609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2160252269257.

It is not a weakly prime, because it can be changed into another prime (2160252269251) 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, 1080126134628 + 1080126134629.

It is an arithmetic number, because the mean of its divisors is an integer number (1080126134629).

Almost surely, 2^{2160252269257} is an apocalyptic number.

It is an amenable number.

2160252269257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2160252269257 is an equidigital number, since it uses as much as digits as its factorization.

2160252269257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 49.

Adding to 2160252269257 its reverse (7529622520612), we get a palindrome (9689874789869).

The spelling of 2160252269257 in words is "two trillion, one hundred sixty billion, two hundred fifty-two million, two hundred sixty-nine thousand, two hundred fifty-seven".