66730254450 has 48 divisors (see below), whose sum is σ = 165616989120. Its totient is φ = 17781190720.

The previous prime is 66730254317. The next prime is 66730254457. The reversal of 66730254450 is 5445203766.

It is not an unprimeable number, because it can be changed into a prime (66730254457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29212 + ... + 366488.

It is an arithmetic number, because the mean of its divisors is an integer number (3450353940).

Almost surely, 2^66730254450 is an apocalyptic number.

66730254450 is an abundant number, since it is smaller than the sum of its proper divisors (98886734670).

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

66730254450 is a wasteful number, since it uses less digits than its factorization.

66730254450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338611 (or 338606 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 42.

The spelling of 66730254450 in words is "sixty-six billion, seven hundred thirty million, two hundred fifty-four thousand, four hundred fifty".