20108256319806 has 8 divisors (see below), whose sum is σ = 40216512639624. Its totient is φ = 6702752106600.

The previous prime is 20108256319793. The next prime is 20108256319859. The reversal of 20108256319806 is 60891365280102.

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

20108256319806 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1675688026645 + ... + 1675688026656.

It is an arithmetic number, because the mean of its divisors is an integer number (5027064079953).

Almost surely, 2^{20108256319806} is an apocalyptic number.

20108256319806 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20108256319806 is a wasteful number, since it uses less digits than its factorization.

20108256319806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3351376053306.

The product of its (nonzero) digits is 1244160, while the sum is 51.

The spelling of 20108256319806 in words is "twenty trillion, one hundred eight billion, two hundred fifty-six million, three hundred nineteen thousand, eight hundred six".