260052205643777 has 16 divisors (see below), whose sum is σ = 275949750661200. Its totient is φ = 244221378723840.

The previous prime is 260052205643767. The next prime is 260052205643809. The reversal of 260052205643777 is 777346502250062.

It can be written as a sum of positive squares in 8 ways, for example, as 64785370732096 + 195266834911681 = 8048936^2 + 13973791^2 .

It is a cyclic number.

It is not a de Polignac number, because 260052205643777 - 2²⁰ = 260052204595201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260052205643767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1214698499 + ... + 1214912567.

It is an arithmetic number, because the mean of its divisors is an integer number (17246859416325).

Almost surely, 2^{260052205643777} is an apocalyptic number.

It is an amenable number.

260052205643777 is a deficient number, since it is larger than the sum of its proper divisors (15897545017423).

260052205643777 is a wasteful number, since it uses less digits than its factorization.

260052205643777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369556.

The product of its (nonzero) digits is 29635200, while the sum is 56.

The spelling of 260052205643777 in words is "two hundred sixty trillion, fifty-two billion, two hundred five million, six hundred forty-three thousand, seven hundred seventy-seven".