2165260351 has 2 divisors, whose sum is σ = 2165260352. Its totient is φ = 2165260350.

The previous prime is 2165260337. The next prime is 2165260367. The reversal of 2165260351 is 1530625612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2165260351 - 2⁹ = 2165259839 is a prime.

It is a super-2 number, since 2×2165260351² = 9376704775225286402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2165200351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082630175 + 1082630176.

It is an arithmetic number, because the mean of its divisors is an integer number (1082630176).

Almost surely, 2^2165260351 is an apocalyptic number.

2165260351 is a deficient number, since it is larger than the sum of its proper divisors (1).

2165260351 is an equidigital number, since it uses as much as digits as its factorization.

2165260351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 2165260351 is about 46532.3581070205. The cubic root of 2165260351 is about 1293.7093228251.

Adding to 2165260351 its reverse (1530625612), we get a palindrome (3695885963).

The spelling of 2165260351 in words is "two billion, one hundred sixty-five million, two hundred sixty thousand, three hundred fifty-one".