66832069696 has 112 divisors (see below), whose sum is σ = 159108526080. Its totient is φ = 27248232960.

The previous prime is 66832069679. The next prime is 66832069699. The reversal of 66832069696 is 69696023866.

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

It is not an unprimeable number, because it can be changed into a prime (66832069699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 778611 + ... + 860173.

It is an arithmetic number, because the mean of its divisors is an integer number (1420611840).

Almost surely, 2^66832069696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66832069696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79554263040).

66832069696 is an abundant number, since it is smaller than the sum of its proper divisors (92276456384).

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

66832069696 is a wasteful number, since it uses less digits than its factorization.

66832069696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81672 (or 81662 counting only the distinct ones).

The product of its (nonzero) digits is 30233088, while the sum is 61.

The spelling of 66832069696 in words is "sixty-six billion, eight hundred thirty-two million, sixty-nine thousand, six hundred ninety-six".