66065133 has 4 divisors (see below), whose sum is σ = 88086848. Its totient is φ = 44043420.

The previous prime is 66065107. The next prime is 66065173. The reversal of 66065133 is 33156066.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 66065133 - 2¹³ = 66056941 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 66065133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66065173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11010853 + ... + 11010858.

It is an arithmetic number, because the mean of its divisors is an integer number (22021712).

Almost surely, 2^66065133 is an apocalyptic number.

It is an amenable number.

66065133 is a deficient number, since it is larger than the sum of its proper divisors (22021715).

66065133 is a wasteful number, since it uses less digits than its factorization.

66065133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22021714.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 66065133 is about 8128.0460751647. The cubic root of 66065133 is about 404.2568967829.

The spelling of 66065133 in words is "sixty-six million, sixty-five thousand, one hundred thirty-three".