33139006866 has 24 divisors (see below), whose sum is σ = 82058493504. Its totient is φ = 9468287640.

The previous prime is 33139006847. The next prime is 33139006877. The reversal of 33139006866 is 66860093133.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131503870 + ... + 131504121.

It is an arithmetic number, because the mean of its divisors is an integer number (3419103896).

Almost surely, 2^33139006866 is an apocalyptic number.

33139006866 is an abundant number, since it is smaller than the sum of its proper divisors (48919486638).

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

33139006866 is a wasteful number, since it uses less digits than its factorization.

33139006866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263008006 (or 263008003 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

Adding to 33139006866 its reverse (66860093133), we get a palindrome (99999099999).

The spelling of 33139006866 in words is "thirty-three billion, one hundred thirty-nine million, six thousand, eight hundred sixty-six".