20116755475171 has 8 divisors (see below), whose sum is σ = 21304532563200. Its totient is φ = 18929471557248.

The previous prime is 20116755475099. The next prime is 20116755475199. The reversal of 20116755475171 is 17157455761102.

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 20116755475171 - 2²¹ = 20116753378019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20116755475471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123208536 + ... + 123371701.

It is an arithmetic number, because the mean of its divisors is an integer number (2663066570400).

Almost surely, 2^{20116755475171} is an apocalyptic number.

20116755475171 is a deficient number, since it is larger than the sum of its proper divisors (1187777088029).

20116755475171 is a wasteful number, since it uses less digits than its factorization.

20116755475171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246585053.

The product of its (nonzero) digits is 2058000, while the sum is 52.

The spelling of 20116755475171 in words is "twenty trillion, one hundred sixteen billion, seven hundred fifty-five million, four hundred seventy-five thousand, one hundred seventy-one".