30666061880 has 16 divisors (see below), whose sum is σ = 68998639320. Its totient is φ = 12266424736.

The previous prime is 30666061879. The next prime is 30666061901. The reversal of 30666061880 is 8816066603.

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 3 ways as a sum of consecutive naturals, for example, 383325734 + ... + 383325813.

Almost surely, 2^30666061880 is an apocalyptic number.

It is an amenable number.

30666061880 is an abundant number, since it is smaller than the sum of its proper divisors (38332577440).

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

30666061880 is a wasteful number, since it uses less digits than its factorization.

30666061880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766651558 (or 766651554 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 30666061880 in words is "thirty billion, six hundred sixty-six million, sixty-one thousand, eight hundred eighty".