66009163 has 8 divisors (see below), whose sum is σ = 72069120. Its totient is φ = 59959080.

The previous prime is 66009143. The next prime is 66009169. The reversal of 66009163 is 36190066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66009163 - 2¹³ = 66000971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66009169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22918 + ... + 25636.

It is an arithmetic number, because the mean of its divisors is an integer number (9008640).

Almost surely, 2^66009163 is an apocalyptic number.

66009163 is a deficient number, since it is larger than the sum of its proper divisors (6059957).

66009163 is a wasteful number, since it uses less digits than its factorization.

66009163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4937.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 66009163 is about 8124.6023287297. The cubic root of 66009163 is about 404.1427031576.

The spelling of 66009163 in words is "sixty-six million, nine thousand, one hundred sixty-three".