260772165 has 12 divisors (see below), whose sum is σ = 452005164. Its totient is φ = 139078464.

The previous prime is 260772151. The next prime is 260772173. The reversal of 260772165 is 561277062.

It can be written as a sum of positive squares in 2 ways, for example, as 180794916 + 79977249 = 13446^2 + 8943^2 .

It is not a de Polignac number, because 260772165 - 2⁶ = 260772101 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 2897424 + ... + 2897513.

It is an arithmetic number, because the mean of its divisors is an integer number (37667097).

Almost surely, 2^260772165 is an apocalyptic number.

It is an amenable number.

260772165 is a deficient number, since it is larger than the sum of its proper divisors (191232999).

260772165 is a wasteful number, since it uses less digits than its factorization.

260772165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5794948 (or 5794945 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 260772165 is about 16148.4415656744. The cubic root of 260772165 is about 638.8816447096.

The spelling of 260772165 in words is "two hundred sixty million, seven hundred seventy-two thousand, one hundred sixty-five".