16555166159 has 16 divisors (see below), whose sum is σ = 19845138432. Its totient is φ = 13502827008.

The previous prime is 16555166143. The next prime is 16555166161. The reversal of 16555166159 is 95166155561.

It is a cyclic number.

It is not a de Polignac number, because 16555166159 - 2⁴ = 16555166143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16555166059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235319 + ... + 297464.

It is an arithmetic number, because the mean of its divisors is an integer number (1240321152).

Almost surely, 2^16555166159 is an apocalyptic number.

16555166159 is a deficient number, since it is larger than the sum of its proper divisors (3289972273).

16555166159 is a wasteful number, since it uses less digits than its factorization.

16555166159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533006.

The product of its digits is 1215000, while the sum is 50.

The spelling of 16555166159 in words is "sixteen billion, five hundred fifty-five million, one hundred sixty-six thousand, one hundred fifty-nine".