11526437161 has 2 divisors, whose sum is σ = 11526437162. Its totient is φ = 11526437160.

The previous prime is 11526437089. The next prime is 11526437201. The reversal of 11526437161 is 16173462511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9226755136 + 2299682025 = 96056^2 + 47955^2 .

It is a cyclic number.

It is not a de Polignac number, because 11526437161 - 2³¹ = 9378953513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11526437161.

It is not a weakly prime, because it can be changed into another prime (11526437261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5763218580 + 5763218581.

It is an arithmetic number, because the mean of its divisors is an integer number (5763218581).

Almost surely, 2^11526437161 is an apocalyptic number.

It is an amenable number.

11526437161 is a deficient number, since it is larger than the sum of its proper divisors (1).

11526437161 is an equidigital number, since it uses as much as digits as its factorization.

11526437161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 37.

Adding to 11526437161 its reverse (16173462511), we get a palindrome (27699899672).

The spelling of 11526437161 in words is "eleven billion, five hundred twenty-six million, four hundred thirty-seven thousand, one hundred sixty-one".