18093166573 has 4 divisors (see below), whose sum is σ = 18093436128. Its totient is φ = 18092897020.

The previous prime is 18093166571. The next prime is 18093166661. The reversal of 18093166573 is 37566139081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 18093166573 - 2¹ = 18093166571 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 (18093166571) 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 3 ways as a sum of consecutive naturals, for example, 54690 + ... + 197932.

It is an arithmetic number, because the mean of its divisors is an integer number (4523359032).

Almost surely, 2^18093166573 is an apocalyptic number.

It is an amenable number.

18093166573 is a deficient number, since it is larger than the sum of its proper divisors (269555).

18093166573 is a wasteful number, since it uses less digits than its factorization.

18093166573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269554.

The product of its (nonzero) digits is 816480, while the sum is 49.

The spelling of 18093166573 in words is "eighteen billion, ninety-three million, one hundred sixty-six thousand, five hundred seventy-three".