66434674712 has 24 divisors (see below), whose sum is σ = 144902161260. Its totient is φ = 28472003280.

The previous prime is 66434674693. The next prime is 66434674717. The reversal of 66434674712 is 21747643466.

66434674712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66434674717) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 84737714 + ... + 84738497.

Almost surely, 2^66434674712 is an apocalyptic number.

It is an amenable number.

66434674712 is an abundant number, since it is smaller than the sum of its proper divisors (78467486548).

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

66434674712 is a wasteful number, since it uses less digits than its factorization.

66434674712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169476231 (or 169476220 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 50.

The spelling of 66434674712 in words is "sixty-six billion, four hundred thirty-four million, six hundred seventy-four thousand, seven hundred twelve".