2165295361 has 2 divisors, whose sum is σ = 2165295362. Its totient is φ = 2165295360.

The previous prime is 2165295331. The next prime is 2165295367. The reversal of 2165295361 is 1635925612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1975269136 + 190026225 = 44444^2 + 13785^2 .

It is a cyclic number.

It is not a de Polignac number, because 2165295361 - 2⁹ = 2165294849 is a prime.

It is not a weakly prime, because it can be changed into another prime (2165295367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082647680 + 1082647681.

It is an arithmetic number, because the mean of its divisors is an integer number (1082647681).

Almost surely, 2^2165295361 is an apocalyptic number.

It is an amenable number.

2165295361 is a deficient number, since it is larger than the sum of its proper divisors (1).

2165295361 is an equidigital number, since it uses as much as digits as its factorization.

2165295361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 40.

The square root of 2165295361 is about 46532.7342953324. The cubic root of 2165295361 is about 1293.7162954307.

The spelling of 2165295361 in words is "two billion, one hundred sixty-five million, two hundred ninety-five thousand, three hundred sixty-one".