11555435043 has 6 divisors (see below), whose sum is σ = 16691183964. Its totient is φ = 7703623356.

The previous prime is 11555435027. The next prime is 11555435057. The reversal of 11555435043 is 34053455511.

11555435043 is a `hidden beast` number, since 1 + 15 + 554 + 3 + 50 + 43 = 666.

It is not a de Polignac number, because 11555435043 - 2⁴ = 11555435027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11555434989 and 11555435007.

It is not an unprimeable number, because it can be changed into a prime (11555435743) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 641968605 + ... + 641968622.

It is an arithmetic number, because the mean of its divisors is an integer number (2781863994).

Almost surely, 2^11555435043 is an apocalyptic number.

11555435043 is a deficient number, since it is larger than the sum of its proper divisors (5135748921).

11555435043 is a wasteful number, since it uses less digits than its factorization.

11555435043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283937233 (or 1283937230 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The spelling of 11555435043 in words is "eleven billion, five hundred fifty-five million, four hundred thirty-five thousand, forty-three".