66334430530 has 16 divisors (see below), whose sum is σ = 119409738624. Its totient is φ = 26532046960.

The previous prime is 66334430521. The next prime is 66334430531. The reversal of 66334430530 is 3503443366.

It is a self number, because there is not a number n which added to its sum of digits gives 66334430530.

It is not an unprimeable number, because it can be changed into a prime (66334430531) 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 7 ways as a sum of consecutive naturals, for example, 47962 + ... + 367381.

It is an arithmetic number, because the mean of its divisors is an integer number (7463108664).

Almost surely, 2^66334430530 is an apocalyptic number.

66334430530 is a deficient number, since it is larger than the sum of its proper divisors (53075308094).

66334430530 is a wasteful number, since it uses less digits than its factorization.

66334430530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431321.

The product of its (nonzero) digits is 233280, while the sum is 37.

Adding to 66334430530 its reverse (3503443366), we get a palindrome (69837873896).

The spelling of 66334430530 in words is "sixty-six billion, three hundred thirty-four million, four hundred thirty thousand, five hundred thirty".