260536710237581 has 2 divisors, whose sum is σ = 260536710237582. Its totient is φ = 260536710237580.

The previous prime is 260536710237527. The next prime is 260536710237611. The reversal of 260536710237581 is 185732017635062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148741318362025 + 111795391875556 = 12195955^2 + 10573334^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-260536710237581 is a prime.

It is a super-2 number, since 2×260536710237581² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260536710297581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130268355118790 + 130268355118791.

It is an arithmetic number, because the mean of its divisors is an integer number (130268355118791).

Almost surely, 2^{260536710237581} is an apocalyptic number.

It is an amenable number.

260536710237581 is a deficient number, since it is larger than the sum of its proper divisors (1).

260536710237581 is an equidigital number, since it uses as much as digits as its factorization.

260536710237581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12700800, while the sum is 56.

The spelling of 260536710237581 in words is "two hundred sixty trillion, five hundred thirty-six billion, seven hundred ten million, two hundred thirty-seven thousand, five hundred eighty-one".