66044140300 has 72 divisors (see below), whose sum is σ = 144485457200. Its totient is φ = 26202424320.

The previous prime is 66044140297. The next prime is 66044140313. The reversal of 66044140300 is 304144066.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22363624 + ... + 22366576.

Almost surely, 2^66044140300 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 66044140300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72242728600).

66044140300 is an abundant number, since it is smaller than the sum of its proper divisors (78441316900).

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

66044140300 is a wasteful number, since it uses less digits than its factorization.

66044140300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4715 (or 4708 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 66044140300 its reverse (304144066), we get a palindrome (66348284366).

The spelling of 66044140300 in words is "sixty-six billion, forty-four million, one hundred forty thousand, three hundred".