66228322 has 8 divisors (see below), whose sum is σ = 99574272. Its totient is φ = 33036900.

The previous prime is 66228313. The next prime is 66228329. The reversal of 66228322 is 22382266.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (66228329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37554 + ... + 39277.

It is an arithmetic number, because the mean of its divisors is an integer number (12446784).

Almost surely, 2^66228322 is an apocalyptic number.

66228322 is a deficient number, since it is larger than the sum of its proper divisors (33345950).

66228322 is a wasteful number, since it uses less digits than its factorization.

66228322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77264.

The product of its digits is 13824, while the sum is 31.

The square root of 66228322 is about 8138.0785201422. The cubic root of 66228322 is about 404.5894778380.

The spelling of 66228322 in words is "sixty-six million, two hundred twenty-eight thousand, three hundred twenty-two".