11556232277 has 2 divisors, whose sum is σ = 11556232278. Its totient is φ = 11556232276.

The previous prime is 11556232271. The next prime is 11556232283. The reversal of 11556232277 is 77223265511.

It is a balanced prime because it is at equal distance from previous prime (11556232271) and next prime (11556232283).

It can be written as a sum of positive squares in only one way, i.e., 10379330641 + 1176901636 = 101879^2 + 34306^2 .

It is a cyclic number.

It is not a de Polignac number, because 11556232277 - 2⁶ = 11556232213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11556232271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5778116138 + 5778116139.

It is an arithmetic number, because the mean of its divisors is an integer number (5778116139).

Almost surely, 2^11556232277 is an apocalyptic number.

It is an amenable number.

11556232277 is a deficient number, since it is larger than the sum of its proper divisors (1).

11556232277 is an equidigital number, since it uses as much as digits as its factorization.

11556232277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 176400, while the sum is 41.

Adding to 11556232277 its reverse (77223265511), we get a palindrome (88779497788).

The spelling of 11556232277 in words is "eleven billion, five hundred fifty-six million, two hundred thirty-two thousand, two hundred seventy-seven".