260542121056 has 144 divisors (see below), whose sum is σ = 603899734032. Its totient is φ = 110315520000.

The previous prime is 260542121053. The next prime is 260542121083. The reversal of 260542121056 is 650121245062.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260542121053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115743931 + ... + 115746181.

It is an arithmetic number, because the mean of its divisors is an integer number (4193748153).

Almost surely, 2^260542121056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260542121056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301949867016).

260542121056 is an abundant number, since it is smaller than the sum of its proper divisors (343357612976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

260542121056 is a wasteful number, since it uses less digits than its factorization.

260542121056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3133 (or 3118 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 260542121056 in words is "two hundred sixty billion, five hundred forty-two million, one hundred twenty-one thousand, fifty-six".