66045430000 has 150 divisors (see below), whose sum is σ = 175763918792. Its totient is φ = 24016080000.

The previous prime is 66045429949. The next prime is 66045430007. The reversal of 66045430000 is 3454066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66045430007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1182709 + ... + 1237291.

Almost surely, 2^66045430000 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 66045430000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87881959396).

66045430000 is an abundant number, since it is smaller than the sum of its proper divisors (109718488792).

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

66045430000 is a wasteful number, since it uses less digits than its factorization.

66045430000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54633 (or 54601 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 66045430000 its reverse (3454066), we get a palindrome (66048884066).

The spelling of 66045430000 in words is "sixty-six billion, forty-five million, four hundred thirty thousand".