20205050560655 has 8 divisors (see below), whose sum is σ = 24342658525584. Its totient is φ = 16099641880000.

The previous prime is 20205050560621. The next prime is 20205050560679. The reversal of 20205050560655 is 55606505050202.

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

It is not a de Polignac number, because 20205050560655 - 2⁴⁴ = 2612864516239 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 8049819686 + ... + 8049822195.

It is an arithmetic number, because the mean of its divisors is an integer number (3042832315698).

Almost surely, 2^{20205050560655} is an apocalyptic number.

20205050560655 is a deficient number, since it is larger than the sum of its proper divisors (4137607964929).

20205050560655 is a wasteful number, since it uses less digits than its factorization.

20205050560655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16099642137.

The product of its (nonzero) digits is 450000, while the sum is 41.

The spelling of 20205050560655 in words is "twenty trillion, two hundred five billion, fifty million, five hundred sixty thousand, six hundred fifty-five".