11550023021567 has 2 divisors, whose sum is σ = 11550023021568. Its totient is φ = 11550023021566.

The previous prime is 11550023021513. The next prime is 11550023021573. The reversal of 11550023021567 is 76512032005511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11550023021567 - 2¹⁸ = 11550022759423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11550023021567.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11550023021597) 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 as a sum of consecutive naturals, namely, 5775011510783 + 5775011510784.

It is an arithmetic number, because the mean of its divisors is an integer number (5775011510784).

Almost surely, 2^{11550023021567} is an apocalyptic number.

11550023021567 is a deficient number, since it is larger than the sum of its proper divisors (1).

11550023021567 is an equidigital number, since it uses as much as digits as its factorization.

11550023021567 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63000, while the sum is 38.

The spelling of 11550023021567 in words is "eleven trillion, five hundred fifty billion, twenty-three million, twenty-one thousand, five hundred sixty-seven".