66135163 has 8 divisors (see below), whose sum is σ = 67371680. Its totient is φ = 64903680.

The previous prime is 66135137. The next prime is 66135193. The reversal of 66135163 is 36153166.

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 66135163 - 2²¹ = 64038011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66135193) 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, 34258 + ... + 36136.

It is an arithmetic number, because the mean of its divisors is an integer number (8421460).

Almost surely, 2^66135163 is an apocalyptic number.

66135163 is a deficient number, since it is larger than the sum of its proper divisors (1236517).

66135163 is a wasteful number, since it uses less digits than its factorization.

66135163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2517.

The product of its digits is 9720, while the sum is 31.

The square root of 66135163 is about 8132.3528575683. The cubic root of 66135163 is about 404.3996857349.

The spelling of 66135163 in words is "sixty-six million, one hundred thirty-five thousand, one hundred sixty-three".