6555166159 has 4 divisors (see below), whose sum is σ = 6555988216. Its totient is φ = 6554344104.

The previous prime is 6555166157. The next prime is 6555166169. The reversal of 6555166159 is 9516615556.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6555166159 - 2¹ = 6555166157 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 (6555166157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398949 + ... + 415054.

It is an arithmetic number, because the mean of its divisors is an integer number (1638997054).

Almost surely, 2^6555166159 is an apocalyptic number.

6555166159 is a deficient number, since it is larger than the sum of its proper divisors (822057).

6555166159 is an equidigital number, since it uses as much as digits as its factorization.

6555166159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822056.

The product of its digits is 1215000, while the sum is 49.

The square root of 6555166159 is about 80963.9806271900. The cubic root of 6555166159 is about 1871.5204120900.

The spelling of 6555166159 in words is "six billion, five hundred fifty-five million, one hundred sixty-six thousand, one hundred fifty-nine".