66227450 has 24 divisors (see below), whose sum is σ = 123608160. Its totient is φ = 26399600.

The previous prime is 66227437. The next prime is 66227453. The reversal of 66227450 is 5472266.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66227453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13421 + ... + 17679.

It is an arithmetic number, because the mean of its divisors is an integer number (5150340).

Almost surely, 2^66227450 is an apocalyptic number.

66227450 is a deficient number, since it is larger than the sum of its proper divisors (57380710).

66227450 is a wasteful number, since it uses less digits than its factorization.

66227450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4582 (or 4577 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 66227450 is about 8138.0249446656. The cubic root of 66227450 is about 404.5877021446.

The spelling of 66227450 in words is "sixty-six million, two hundred twenty-seven thousand, four hundred fifty".