30643012566 has 12 divisors (see below), whose sum is σ = 66393193932. Its totient is φ = 10214337516.

The previous prime is 30643012423. The next prime is 30643012619. The reversal of 30643012566 is 66521034603.

30643012566 is a `hidden beast` number, since 3 + 0 + 64 + 30 + 1 + 2 + 566 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 30643012566.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 851194776 + ... + 851194811.

It is an arithmetic number, because the mean of its divisors is an integer number (5532766161).

Almost surely, 2^30643012566 is an apocalyptic number.

30643012566 is an abundant number, since it is smaller than the sum of its proper divisors (35750181366).

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

30643012566 is a wasteful number, since it uses less digits than its factorization.

30643012566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702389595 (or 1702389592 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 30643012566 in words is "thirty billion, six hundred forty-three million, twelve thousand, five hundred sixty-six".