66288422 has 8 divisors (see below), whose sum is σ = 99470496. Its totient is φ = 33131592.

The previous prime is 66288379. The next prime is 66288433. The reversal of 66288422 is 22488266.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3008 + ... + 11900.

It is an arithmetic number, because the mean of its divisors is an integer number (12433812).

Almost surely, 2^66288422 is an apocalyptic number.

66288422 is a deficient number, since it is larger than the sum of its proper divisors (33182074).

66288422 is a wasteful number, since it uses less digits than its factorization.

66288422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12622.

The product of its digits is 73728, while the sum is 38.

The square root of 66288422 is about 8141.7702006382. The cubic root of 66288422 is about 404.7118246695.

The spelling of 66288422 in words is "sixty-six million, two hundred eighty-eight thousand, four hundred twenty-two".