20790965982 has 32 divisors (see below), whose sum is σ = 42937251840. Its totient is φ = 6704580960.

The previous prime is 20790965939. The next prime is 20790966019. The reversal of 20790965982 is 28956909702.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 613863 + ... + 646845.

It is an arithmetic number, because the mean of its divisors is an integer number (1341789120).

Almost surely, 2^20790965982 is an apocalyptic number.

20790965982 is an abundant number, since it is smaller than the sum of its proper divisors (22146285858).

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

20790965982 is a wasteful number, since it uses less digits than its factorization.

20790965982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36408.

The product of its (nonzero) digits is 4898880, while the sum is 57.

The spelling of 20790965982 in words is "twenty billion, seven hundred ninety million, nine hundred sixty-five thousand, nine hundred eighty-two".