66069332159 has 4 divisors (see below), whose sum is σ = 66069846240. Its totient is φ = 66068818080.

The previous prime is 66069332143. The next prime is 66069332177. The reversal of 66069332159 is 95123396066.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 95123396066 = 2 ⋅47561698033.

It is a cyclic number.

It is not a de Polignac number, because 66069332159 - 2⁴ = 66069332143 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 (66069332179) 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, 127802 + ... + 385320.

It is an arithmetic number, because the mean of its divisors is an integer number (16517461560).

Almost surely, 2^66069332159 is an apocalyptic number.

66069332159 is a deficient number, since it is larger than the sum of its proper divisors (514081).

66069332159 is a wasteful number, since it uses less digits than its factorization.

66069332159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514080.

The product of its (nonzero) digits is 1574640, while the sum is 50.

The spelling of 66069332159 in words is "sixty-six billion, sixty-nine million, three hundred thirty-two thousand, one hundred fifty-nine".