66066421146432 has 112 divisors (see below), whose sum is σ = 200172620736000. Its totient is φ = 18838292239872.

The previous prime is 66066421146419. The next prime is 66066421146461. The reversal of 66066421146432 is 23464112466066.

It is a tau number, because it is divible by the number of its divisors (112).

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 15 ways as a sum of consecutive naturals, for example, 48584418 + ... + 49925729.

Almost surely, 2^{66066421146432} is an apocalyptic number.

It is an amenable number.

66066421146432 is an abundant number, since it is smaller than the sum of its proper divisors (134106199589568).

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

66066421146432 is a wasteful number, since it uses less digits than its factorization.

66066421146432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98510668 (or 98510658 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 51.

The spelling of 66066421146432 in words is "sixty-six trillion, sixty-six billion, four hundred twenty-one million, one hundred forty-six thousand, four hundred thirty-two".