66064143 has 8 divisors (see below), whose sum is σ = 88126000. Its totient is φ = 44022528.

The previous prime is 66064133. The next prime is 66064157. The reversal of 66064143 is 34146066.

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

It is not a de Polignac number, because 66064143 - 2⁹ = 66063631 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2 and base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 66064143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66064123) 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, 6033 + ... + 12981.

It is an arithmetic number, because the mean of its divisors is an integer number (11015750).

Almost surely, 2^66064143 is an apocalyptic number.

66064143 is a deficient number, since it is larger than the sum of its proper divisors (22061857).

66064143 is a wasteful number, since it uses less digits than its factorization.

66064143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10121.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 66064143 is about 8127.9851746912. The cubic root of 66064143 is about 404.2548774811.

The spelling of 66064143 in words is "sixty-six million, sixty-four thousand, one hundred forty-three".