66622012545112 has 16 divisors (see below), whose sum is σ = 124924434480360. Its totient is φ = 33308830017024.

The previous prime is 66622012545107. The next prime is 66622012545163. The reversal of 66622012545112 is 21154521022666.

It is a happy number.

It is a super-2 number, since 2×66622012545112² (a number of 28 digits) contains 22 as substring.

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, 271901833 + ... + 272146744.

Almost surely, 2^{66622012545112} is an apocalyptic number.

It is an amenable number.

66622012545112 is a deficient number, since it is larger than the sum of its proper divisors (58302421935248).

66622012545112 is a wasteful number, since it uses less digits than its factorization.

66622012545112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544063890 (or 544063886 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 43.

Adding to 66622012545112 its reverse (21154521022666), we get a palindrome (87776533567778).

The spelling of 66622012545112 in words is "sixty-six trillion, six hundred twenty-two billion, twelve million, five hundred forty-five thousand, one hundred twelve".