66183145 has 16 divisors (see below), whose sum is σ = 91002240. Its totient is φ = 45264384.

The previous prime is 66183127. The next prime is 66183157. The reversal of 66183145 is 54138166.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 66183145 - 2⁵ = 66183113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66183145.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12409 + ... + 16921.

It is an arithmetic number, because the mean of its divisors is an integer number (5687640).

Almost surely, 2^66183145 is an apocalyptic number.

It is an amenable number.

66183145 is a deficient number, since it is larger than the sum of its proper divisors (24819095).

66183145 is a wasteful number, since it uses less digits than its factorization.

66183145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4944.

The product of its digits is 17280, while the sum is 34.

The square root of 66183145 is about 8135.3023914296. The cubic root of 66183145 is about 404.4974613313.

The spelling of 66183145 in words is "sixty-six million, one hundred eighty-three thousand, one hundred forty-five".