11556557038433 has 16 divisors (see below), whose sum is σ = 13929130832256. Its totient is φ = 9458051792640.

The previous prime is 11556557038421. The next prime is 11556557038441. The reversal of 11556557038433 is 33483075565511.

It is not a de Polignac number, because 11556557038433 - 2¹⁰ = 11556557037409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11556557038483) 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 in 15 ways as a sum of consecutive naturals, for example, 1343468966 + ... + 1343477567.

It is an arithmetic number, because the mean of its divisors is an integer number (870570677016).

Almost surely, 2^{11556557038433} is an apocalyptic number.

It is an amenable number.

11556557038433 is a deficient number, since it is larger than the sum of its proper divisors (2372573793823).

11556557038433 is a wasteful number, since it uses less digits than its factorization.

11556557038433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2686946584.

The product of its (nonzero) digits is 22680000, while the sum is 56.

The spelling of 11556557038433 in words is "eleven trillion, five hundred fifty-six billion, five hundred fifty-seven million, thirty-eight thousand, four hundred thirty-three".