66065703 has 16 divisors (see below), whose sum is σ = 96249216. Its totient is φ = 39975840.

The previous prime is 66065687. The next prime is 66065707. The reversal of 66065703 is 30756066.

66065703 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 66065703 - 2⁴ = 66065687 is a prime.

It is a super-2 number, since 2×66065703² = 8729354225768418, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66065707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26976 + ... + 29322.

It is an arithmetic number, because the mean of its divisors is an integer number (6015576).

Almost surely, 2^66065703 is an apocalyptic number.

66065703 is a deficient number, since it is larger than the sum of its proper divisors (30183513).

66065703 is a wasteful number, since it uses less digits than its factorization.

66065703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3214.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 66065703 is about 8128.0811388667. The cubic root of 66065703 is about 404.2580594020.

The spelling of 66065703 in words is "sixty-six million, sixty-five thousand, seven hundred three".