260665516701 has 6 divisors (see below), whose sum is σ = 376516857470. Its totient is φ = 173777011128.

The previous prime is 260665516669. The next prime is 260665516711. The reversal of 260665516701 is 107615566062.

260665516701 is a `hidden beast` number, since 2 + 6 + 0 + 6 + 65 + 516 + 70 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 260583704676 + 81812025 = 510474^2 + 9045^2 .

It is not a de Polignac number, because 260665516701 - 2⁵ = 260665516669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260665516711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14481417586 + ... + 14481417603.

Almost surely, 2^260665516701 is an apocalyptic number.

It is an amenable number.

260665516701 is a deficient number, since it is larger than the sum of its proper divisors (115851340769).

260665516701 is a wasteful number, since it uses less digits than its factorization.

260665516701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28962835195 (or 28962835192 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 260665516701 in words is "two hundred sixty billion, six hundred sixty-five million, five hundred sixteen thousand, seven hundred one".