11554322642556 has 24 divisors (see below), whose sum is σ = 26960143136640. Its totient is φ = 3851432742192.

The previous prime is 11554322642537. The next prime is 11554322642557. The reversal of 11554322642556 is 65524622345511.

It is a junction number, because it is equal to n+sod(n) for n = 11554322642499 and 11554322642508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11554322642557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8342755 + ... + 9628613.

It is an arithmetic number, because the mean of its divisors is an integer number (1123339297360).

Almost surely, 2^{11554322642556} is an apocalyptic number.

It is an amenable number.

11554322642556 is an abundant number, since it is smaller than the sum of its proper divisors (15405820494084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11554322642556 is a wasteful number, since it uses less digits than its factorization.

11554322642556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2034673 (or 2034671 counting only the distinct ones).

The product of its digits is 8640000, while the sum is 51.

The spelling of 11554322642556 in words is "eleven trillion, five hundred fifty-four billion, three hundred twenty-two million, six hundred forty-two thousand, five hundred fifty-six".