66554322 has 8 divisors (see below), whose sum is σ = 133108656. Its totient is φ = 22184772.

The previous prime is 66554309. The next prime is 66554339. The reversal of 66554322 is 22345566.

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

66554322 is an admirable number.

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5546188 + ... + 5546199.

It is an arithmetic number, because the mean of its divisors is an integer number (16638582).

Almost surely, 2^66554322 is an apocalyptic number.

66554322 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66554322 is a wasteful number, since it uses less digits than its factorization.

66554322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11092392.

The product of its digits is 43200, while the sum is 33.

The square root of 66554322 is about 8158.0832307595. The cubic root of 66554322 is about 405.2522373240.

Adding to 66554322 its reverse (22345566), we get a palindrome (88899888).

The spelling of 66554322 in words is "sixty-six million, five hundred fifty-four thousand, three hundred twenty-two".