66035984472 has 48 divisors (see below), whose sum is σ = 178879512240. Its totient is φ = 22008049728.

The previous prime is 66035984453. The next prime is 66035984473. The reversal of 66035984472 is 27448953066.

66035984472 is a `hidden beast` number, since 6 + 6 + 0 + 3 + 598 + 4 + 47 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66035984473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 337078 + ... + 495674.

It is an arithmetic number, because the mean of its divisors is an integer number (3726656505).

Almost surely, 2^66035984472 is an apocalyptic number.

It is an amenable number.

66035984472 is an abundant number, since it is smaller than the sum of its proper divisors (112843527768).

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

66035984472 is a wasteful number, since it uses less digits than its factorization.

66035984472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164392 (or 164385 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 66035984472 in words is "sixty-six billion, thirty-five million, nine hundred eighty-four thousand, four hundred seventy-two".