20562010654655 has 4 divisors (see below), whose sum is σ = 24674412785592. Its totient is φ = 16449608523720.

The previous prime is 20562010654613. The next prime is 20562010654673. The reversal of 20562010654655 is 55645601026502.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20562010654655 - 2¹⁰ = 20562010653631 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 (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2056201065461 + ... + 2056201065470.

It is an arithmetic number, because the mean of its divisors is an integer number (6168603196398).

Almost surely, 2^{20562010654655} is an apocalyptic number.

20562010654655 is a deficient number, since it is larger than the sum of its proper divisors (4112402130937).

20562010654655 is an equidigital number, since it uses as much as digits as its factorization.

20562010654655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4112402130936.

The product of its (nonzero) digits is 2160000, while the sum is 47.

The spelling of 20562010654655 in words is "twenty trillion, five hundred sixty-two billion, ten million, six hundred fifty-four thousand, six hundred fifty-five".