12532612165261 has 2 divisors, whose sum is σ = 12532612165262. Its totient is φ = 12532612165260.

The previous prime is 12532612165243. The next prime is 12532612165303. The reversal of 12532612165261 is 16256121623521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11132399075625 + 1400213089636 = 3336525^2 + 1183306^2 .

It is a cyclic number.

It is not a de Polignac number, because 12532612165261 - 2¹³ = 12532612157069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12532612165361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6266306082630 + 6266306082631.

It is an arithmetic number, because the mean of its divisors is an integer number (6266306082631).

Almost surely, 2^{12532612165261} is an apocalyptic number.

It is an amenable number.

12532612165261 is a deficient number, since it is larger than the sum of its proper divisors (1).

12532612165261 is an equidigital number, since it uses as much as digits as its factorization.

12532612165261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 43.

Adding to 12532612165261 its reverse (16256121623521), we get a palindrome (28788733788782).

The spelling of 12532612165261 in words is "twelve trillion, five hundred thirty-two billion, six hundred twelve million, one hundred sixty-five thousand, two hundred sixty-one".