66832032784 has 20 divisors (see below), whose sum is σ = 141258615120. Its totient is φ = 30378196640.

The previous prime is 66832032779. The next prime is 66832032823. The reversal of 66832032784 is 48723023866.

It is a happy 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, 189863554 + ... + 189863905.

It is an arithmetic number, because the mean of its divisors is an integer number (7062930756).

Almost surely, 2^66832032784 is an apocalyptic number.

It is an amenable number.

66832032784 is an abundant number, since it is smaller than the sum of its proper divisors (74426582336).

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

66832032784 is a wasteful number, since it uses less digits than its factorization.

66832032784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379727478 (or 379727472 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 49.

The spelling of 66832032784 in words is "sixty-six billion, eight hundred thirty-two million, thirty-two thousand, seven hundred eighty-four".