260211668 has 6 divisors (see below), whose sum is σ = 455370426. Its totient is φ = 130105832.

The previous prime is 260211661. The next prime is 260211769. The reversal of 260211668 is 866112062.

It can be written as a sum of positive squares in only one way, i.e., 255424324 + 4787344 = 15982^2 + 2188^2 .

It is a super-2 number, since 2×260211668² = 135420224326684448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260211661) 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, 32526455 + ... + 32526462.

It is an arithmetic number, because the mean of its divisors is an integer number (75895071).

Almost surely, 2^260211668 is an apocalyptic number.

It is an amenable number.

260211668 is a deficient number, since it is larger than the sum of its proper divisors (195158758).

260211668 is a wasteful number, since it uses less digits than its factorization.

260211668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65052921 (or 65052919 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 260211668 is about 16131.0777073325. The cubic root of 260211668 is about 638.4235844339.

The spelling of 260211668 in words is "two hundred sixty million, two hundred eleven thousand, six hundred sixty-eight".