66264773474227 has 4 divisors (see below), whose sum is σ = 66266832505680. Its totient is φ = 66262714442776.

The previous prime is 66264773474183. The next prime is 66264773474231. The reversal of 66264773474227 is 72247437746266.

66264773474227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66264773474227 - 2³⁵ = 66230413735859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66264773454227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1029467452 + ... + 1029531817.

It is an arithmetic number, because the mean of its divisors is an integer number (16566708126420).

Almost surely, 2^{66264773474227} is an apocalyptic number.

66264773474227 is a deficient number, since it is larger than the sum of its proper divisors (2059031453).

66264773474227 is a wasteful number, since it uses less digits than its factorization.

66264773474227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2059031452.

The product of its digits is 796594176, while the sum is 67.

The spelling of 66264773474227 in words is "sixty-six trillion, two hundred sixty-four billion, seven hundred seventy-three million, four hundred seventy-four thousand, two hundred twenty-seven".