66223433432265 has 32 divisors (see below), whose sum is σ = 109257374620800. Its totient is φ = 34235261938176.

The previous prime is 66223433432249. The next prime is 66223433432323. The reversal of 66223433432265 is 56223433432266.

It is not a de Polignac number, because 66223433432265 - 2⁴ = 66223433432249 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 501740740 + ... + 501872709.

It is an arithmetic number, because the mean of its divisors is an integer number (3414292956900).

Almost surely, 2^{66223433432265} is an apocalyptic number.

It is an amenable number.

66223433432265 is a deficient number, since it is larger than the sum of its proper divisors (43033941188535).

66223433432265 is a wasteful number, since it uses less digits than its factorization.

66223433432265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003613593.

The product of its digits is 22394880, while the sum is 51.

Subtracting from 66223433432265 its reverse (56223433432266), we obtain a palindrome (9999999999999).

The spelling of 66223433432265 in words is "sixty-six trillion, two hundred twenty-three billion, four hundred thirty-three million, four hundred thirty-two thousand, two hundred sixty-five".