113252647661 has 2 divisors, whose sum is σ = 113252647662. Its totient is φ = 113252647660.

The previous prime is 113252647639. The next prime is 113252647691. The reversal of 113252647661 is 166746252311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112178774761 + 1073872900 = 334931^2 + 32770^2 .

It is a cyclic number.

It is not a de Polignac number, because 113252647661 - 2¹⁴ = 113252631277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113252647621) 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 as a sum of consecutive naturals, namely, 56626323830 + 56626323831.

It is an arithmetic number, because the mean of its divisors is an integer number (56626323831).

Almost surely, 2^113252647661 is an apocalyptic number.

It is an amenable number.

113252647661 is a deficient number, since it is larger than the sum of its proper divisors (1).

113252647661 is an equidigital number, since it uses as much as digits as its factorization.

113252647661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 44.

Adding to 113252647661 its reverse (166746252311), we get a palindrome (279998899972).

The spelling of 113252647661 in words is "one hundred thirteen billion, two hundred fifty-two million, six hundred forty-seven thousand, six hundred sixty-one".