20004304661766 has 16 divisors (see below), whose sum is σ = 44454010359600. Its totient is φ = 6668101553904.

The previous prime is 20004304661657. The next prime is 20004304661779. The reversal of 20004304661766 is 66716640340002.

It is a happy number.

20004304661766 is a `hidden beast` number, since 2 + 0 + 0 + 0 + 430 + 46 + 6 + 176 + 6 = 666.

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, 185225043111 + ... + 185225043218.

It is an arithmetic number, because the mean of its divisors is an integer number (2778375647475).

Almost surely, 2^{20004304661766} is an apocalyptic number.

20004304661766 is an abundant number, since it is smaller than the sum of its proper divisors (24449705697834).

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

20004304661766 is a wasteful number, since it uses less digits than its factorization.

20004304661766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370450086340 (or 370450086334 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The spelling of 20004304661766 in words is "twenty trillion, four billion, three hundred four million, six hundred sixty-one thousand, seven hundred sixty-six".