20330809798 has 16 divisors (see below), whose sum is σ = 32870609856. Its totient is φ = 9375298560.

The previous prime is 20330809789. The next prime is 20330809801. The reversal of 20330809798 is 89790803302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309118 + ... + 369073.

It is an arithmetic number, because the mean of its divisors is an integer number (2054413116).

Almost surely, 2^20330809798 is an apocalyptic number.

20330809798 is a deficient number, since it is larger than the sum of its proper divisors (12539800058).

20330809798 is a wasteful number, since it uses less digits than its factorization.

20330809798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679359.

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 20330809798 in words is "twenty billion, three hundred thirty million, eight hundred nine thousand, seven hundred ninety-eight".