66002105536 has 56 divisors (see below), whose sum is σ = 133986158240. Its totient is φ = 32250120192.

The previous prime is 66002105531. The next prime is 66002105537. The reversal of 66002105536 is 63550120066.

It is not an unprimeable number, because it can be changed into a prime (66002105531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444445 + ... + 574051.

Almost surely, 2^66002105536 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 66002105536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66993079120).

66002105536 is an abundant number, since it is smaller than the sum of its proper divisors (67984052704).

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

66002105536 is a wasteful number, since it uses less digits than its factorization.

66002105536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129801 (or 129791 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The spelling of 66002105536 in words is "sixty-six billion, two million, one hundred five thousand, five hundred thirty-six".