66227056 has 40 divisors (see below), whose sum is σ = 147051104. Its totient is φ = 28304640.

The previous prime is 66227047. The next prime is 66227059. The reversal of 66227056 is 65072266.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66227059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60046 + ... + 61138.

Almost surely, 2^66227056 is an apocalyptic number.

It is an amenable number.

66227056 is an abundant number, since it is smaller than the sum of its proper divisors (80824048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66227056 is a wasteful number, since it uses less digits than its factorization.

66227056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1649 (or 1643 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 66227056 is about 8138.0007372819. Note that the first 3 decimals coincide. The cubic root of 66227056 is about 404.5868998194.

The spelling of 66227056 in words is "sixty-six million, two hundred twenty-seven thousand, fifty-six".