11556244433 has 2 divisors, whose sum is σ = 11556244434. Its totient is φ = 11556244432.

The previous prime is 11556244397. The next prime is 11556244471. The reversal of 11556244433 is 33444265511.

11556244433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (11556244471) can be obtained adding 11556244433 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7332154384 + 4224090049 = 85628^2 + 64993^2 .

It is a cyclic number.

It is not a de Polignac number, because 11556244433 - 2¹⁰ = 11556243409 is a prime.

It is not a weakly prime, because it can be changed into another prime (11556214433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5778122216 + 5778122217.

It is an arithmetic number, because the mean of its divisors is an integer number (5778122217).

Almost surely, 2^11556244433 is an apocalyptic number.

It is an amenable number.

11556244433 is a deficient number, since it is larger than the sum of its proper divisors (1).

11556244433 is an equidigital number, since it uses as much as digits as its factorization.

11556244433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172800, while the sum is 38.

The spelling of 11556244433 in words is "eleven billion, five hundred fifty-six million, two hundred forty-four thousand, four hundred thirty-three".