260236584981 has 12 divisors (see below), whose sum is σ = 377294680620. Its totient is φ = 172846106880.

The previous prime is 260236584977. The next prime is 260236584989. The reversal of 260236584981 is 189485632062.

260236584981 is a `hidden beast` number, since 26 + 0 + 2 + 36 + 584 + 9 + 8 + 1 = 666.

260236584981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 97128839025 + 163107745956 = 311655^2 + 403866^2 .

It is not a de Polignac number, because 260236584981 - 2² = 260236584977 is a prime.

It is a super-2 number, since 2×260236584981² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260236584989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53743260 + ... + 53748101.

It is an arithmetic number, because the mean of its divisors is an integer number (31441223385).

Almost surely, 2^260236584981 is an apocalyptic number.

It is an amenable number.

260236584981 is a deficient number, since it is larger than the sum of its proper divisors (117058095639).

260236584981 is a wasteful number, since it uses less digits than its factorization.

260236584981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107491636 (or 107491633 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 260236584981 in words is "two hundred sixty billion, two hundred thirty-six million, five hundred eighty-four thousand, nine hundred eighty-one".