11550162545543 has 16 divisors (see below), whose sum is σ = 12136009317120. Its totient is φ = 10971538167744.

The previous prime is 11550162545533. The next prime is 11550162545563. The reversal of 11550162545543 is 34554526105511.

It is a cyclic number.

It is not a de Polignac number, because 11550162545543 - 2⁴ = 11550162545527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11550162545533) 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 15 ways as a sum of consecutive naturals, for example, 812321 + ... + 4874442.

It is an arithmetic number, because the mean of its divisors is an integer number (758500582320).

Almost surely, 2^{11550162545543} is an apocalyptic number.

11550162545543 is a deficient number, since it is larger than the sum of its proper divisors (585846771577).

11550162545543 is a wasteful number, since it uses less digits than its factorization.

11550162545543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5687398.

The product of its (nonzero) digits is 1800000, while the sum is 47.

The spelling of 11550162545543 in words is "eleven trillion, five hundred fifty billion, one hundred sixty-two million, five hundred forty-five thousand, five hundred forty-three".