66484422 has 16 divisors (see below), whose sum is σ = 147743280. Its totient is φ = 22161456.

The previous prime is 66484403. The next prime is 66484427. The reversal of 66484422 is 22448466.

It is a happy number.

66484422 is a `hidden beast` number, since 6 + 648 + 4 + 4 + 2 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66484427) 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, 615543 + ... + 615650.

It is an arithmetic number, because the mean of its divisors is an integer number (9233955).

Almost surely, 2^66484422 is an apocalyptic number.

66484422 is an abundant number, since it is smaller than the sum of its proper divisors (81258858).

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

66484422 is a wasteful number, since it uses less digits than its factorization.

66484422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231204 (or 1231198 counting only the distinct ones).

The product of its digits is 73728, while the sum is 36.

The square root of 66484422 is about 8153.7980107432. The cubic root of 66484422 is about 405.1103128861.

The spelling of 66484422 in words is "sixty-six million, four hundred eighty-four thousand, four hundred twenty-two".