20775835780184 has 16 divisors (see below), whose sum is σ = 39066310122000. Its totient is φ = 10358153080992.

The previous prime is 20775835780177. The next prime is 20775835780223. The reversal of 20775835780184 is 48108753857702.

It is a self number, because there is not a number n which added to its sum of digits gives 20775835780184.

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, 3720598172 + ... + 3720603755.

It is an arithmetic number, because the mean of its divisors is an integer number (2441644382625).

Almost surely, 2^{20775835780184} is an apocalyptic number.

It is an amenable number.

20775835780184 is a deficient number, since it is larger than the sum of its proper divisors (18290474341816).

20775835780184 is a wasteful number, since it uses less digits than its factorization.

20775835780184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7441202282 (or 7441202278 counting only the distinct ones).

The product of its (nonzero) digits is 105369600, while the sum is 65.

The spelling of 20775835780184 in words is "twenty trillion, seven hundred seventy-five billion, eight hundred thirty-five million, seven hundred eighty thousand, one hundred eighty-four".