20803786656277 has 8 divisors (see below), whose sum is σ = 20845682624000. Its totient is φ = 20761891509600.

The previous prime is 20803786656209. The next prime is 20803786656463. The reversal of 20803786656277 is 77265668730802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20803786656277 - 2¹¹ = 20803786654229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20803786656577) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 93002188 + ... + 93225610.

It is an arithmetic number, because the mean of its divisors is an integer number (2605710328000).

Almost surely, 2^{20803786656277} is an apocalyptic number.

It is an amenable number.

20803786656277 is a deficient number, since it is larger than the sum of its proper divisors (41895967723).

20803786656277 is a wasteful number, since it uses less digits than its factorization.

20803786656277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410523.

The product of its (nonzero) digits is 284497920, while the sum is 67.

The spelling of 20803786656277 in words is "twenty trillion, eight hundred three billion, seven hundred eighty-six million, six hundred fifty-six thousand, two hundred seventy-seven".