20116761366171 has 16 divisors (see below), whose sum is σ = 28234702941440. Its totient is φ = 12705029612640.

The previous prime is 20116761366137. The next prime is 20116761366173. The reversal of 20116761366171 is 17166316761102.

It is not a de Polignac number, because 20116761366171 - 2⁷ = 20116761366043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20116761366171.

It is not an unprimeable number, because it can be changed into a prime (20116761366173) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1570660 + ... + 6534561.

It is an arithmetic number, because the mean of its divisors is an integer number (1764668933840).

Almost surely, 2^{20116761366171} is an apocalyptic number.

20116761366171 is a deficient number, since it is larger than the sum of its proper divisors (8117941575269).

20116761366171 is a wasteful number, since it uses less digits than its factorization.

20116761366171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8148786.

The product of its (nonzero) digits is 381024, while the sum is 48.

The spelling of 20116761366171 in words is "twenty trillion, one hundred sixteen billion, seven hundred sixty-one million, three hundred sixty-six thousand, one hundred seventy-one".