66032704960 has 112 divisors (see below), whose sum is σ = 160097065632. Its totient is φ = 25934745600.

The previous prime is 66032704949. The next prime is 66032704961. The reversal of 66032704960 is 6940723066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66032704961) 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, 12548730 + ... + 12553990.

It is an arithmetic number, because the mean of its divisors is an integer number (1429438086).

Almost surely, 2^66032704960 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 66032704960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80048532816).

66032704960 is an abundant number, since it is smaller than the sum of its proper divisors (94064360672).

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

66032704960 is a wasteful number, since it uses less digits than its factorization.

66032704960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5982 (or 5972 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 43.

The spelling of 66032704960 in words is "sixty-six billion, thirty-two million, seven hundred four thousand, nine hundred sixty".