11554504616643 has 16 divisors (see below), whose sum is σ = 16075914531840. Its totient is φ = 7368052307264.

The previous prime is 11554504616623. The next prime is 11554504616647. The reversal of 11554504616643 is 34661640545511.

It is a cyclic number.

It is not a de Polignac number, because 11554504616643 - 2¹⁴ = 11554504600259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11554504616647) 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, 20739655 + ... + 21289487.

It is an arithmetic number, because the mean of its divisors is an integer number (1004744658240).

Almost surely, 2^{11554504616643} is an apocalyptic number.

11554504616643 is a deficient number, since it is larger than the sum of its proper divisors (4521409915197).

11554504616643 is a wasteful number, since it uses less digits than its factorization.

11554504616643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854418.

The product of its (nonzero) digits is 5184000, while the sum is 51.

The spelling of 11554504616643 in words is "eleven trillion, five hundred fifty-four billion, five hundred four million, six hundred sixteen thousand, six hundred forty-three".