30639030066 has 24 divisors (see below), whose sum is σ = 69270851520. Its totient is φ = 9768965976.

The previous prime is 30639030061. The next prime is 30639030077. The reversal of 30639030066 is 66003093603.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30639030066.

It is not an unprimeable number, because it can be changed into a prime (30639030061) 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 11 ways as a sum of consecutive naturals, for example, 37003246 + ... + 37004073.

It is an arithmetic number, because the mean of its divisors is an integer number (2886285480).

Almost surely, 2^30639030066 is an apocalyptic number.

30639030066 is an abundant number, since it is smaller than the sum of its proper divisors (38631821454).

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

30639030066 is a wasteful number, since it uses less digits than its factorization.

30639030066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74007350 (or 74007347 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 36.

The spelling of 30639030066 in words is "thirty billion, six hundred thirty-nine million, thirty thousand, sixty-six".