66227472267 has 16 divisors (see below), whose sum is σ = 96560795520. Its totient is φ = 40042059200.

The previous prime is 66227472217. The next prime is 66227472277. The reversal of 66227472267 is 76227472266.

It is not a de Polignac number, because 66227472267 - 2¹⁶ = 66227406731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66227472217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2381034 + ... + 2408687.

It is an arithmetic number, because the mean of its divisors is an integer number (6035049720).

Almost surely, 2^66227472267 is an apocalyptic number.

66227472267 is a deficient number, since it is larger than the sum of its proper divisors (30333323253).

66227472267 is a wasteful number, since it uses less digits than its factorization.

66227472267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4790154.

The product of its digits is 4741632, while the sum is 51.

Subtracting 66227472267 from its reverse (76227472266), we obtain a palindrome (9999999999).

The spelling of 66227472267 in words is "sixty-six billion, two hundred twenty-seven million, four hundred seventy-two thousand, two hundred sixty-seven".