66159063 has 48 divisors (see below), whose sum is σ = 105131520. Its totient is φ = 39961152.

The previous prime is 66159047. The next prime is 66159073. The reversal of 66159063 is 36095166.

66159063 is a `hidden beast` number, since 6 + 6 + 1 + 590 + 63 = 666.

It is not a de Polignac number, because 66159063 - 2⁴ = 66159047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66159013) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 618256 + ... + 618362.

It is an arithmetic number, because the mean of its divisors is an integer number (2190240).

Almost surely, 2^66159063 is an apocalyptic number.

66159063 is a deficient number, since it is larger than the sum of its proper divisors (38972457).

66159063 is a wasteful number, since it uses less digits than its factorization.

66159063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 66159063 is about 8133.8221642718. The cubic root of 66159063 is about 404.4483940066.

The spelling of 66159063 in words is "sixty-six million, one hundred fifty-nine thousand, sixty-three".