131560265553605 has 12 divisors (see below), whose sum is σ = 183647391099660. Its totient is φ = 90212753522304.

The previous prime is 131560265553601. The next prime is 131560265553649. The reversal of 131560265553605 is 506355562065131.

It can be written as a sum of positive squares in 2 ways, for example, as 96378083410756 + 35182182142849 = 9817234^2 + 5931457^2 .

It is not a de Polignac number, because 131560265553605 - 2² = 131560265553601 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131560265553601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 268490337620 + ... + 268490338109.

It is an arithmetic number, because the mean of its divisors is an integer number (15303949258305).

Almost surely, 2^{131560265553605} is an apocalyptic number.

It is an amenable number.

131560265553605 is a deficient number, since it is larger than the sum of its proper divisors (52087125546055).

131560265553605 is an equidigital number, since it uses as much as digits as its factorization.

131560265553605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536980675748 (or 536980675741 counting only the distinct ones).

The product of its (nonzero) digits is 12150000, while the sum is 53.

The spelling of 131560265553605 in words is "one hundred thirty-one trillion, five hundred sixty billion, two hundred sixty-five million, five hundred fifty-three thousand, six hundred five".