66018422 has 8 divisors (see below), whose sum is σ = 99581400. Its totient is φ = 32824624.

The previous prime is 66018377. The next prime is 66018451. The reversal of 66018422 is 22481066.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91847 + ... + 92562.

It is an arithmetic number, because the mean of its divisors is an integer number (12447675).

Almost surely, 2^66018422 is an apocalyptic number.

66018422 is a deficient number, since it is larger than the sum of its proper divisors (33562978).

66018422 is a wasteful number, since it uses less digits than its factorization.

66018422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184590.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 66018422 is about 8125.1721212538. The cubic root of 66018422 is about 404.1615984249.

Adding to 66018422 its reverse (22481066), we get a palindrome (88499488).

The spelling of 66018422 in words is "sixty-six million, eighteen thousand, four hundred twenty-two".