2155171414116 has 144 divisors (see below), whose sum is σ = 5925652395264. Its totient is φ = 607787256384.

The previous prime is 2155171414093. The next prime is 2155171414153. The reversal of 2155171414116 is 6114141715512.

It is a super-2 number, since 2×2155171414116² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54787231 + ... + 54826553.

It is an arithmetic number, because the mean of its divisors is an integer number (41150363856).

Almost surely, 2^{2155171414116} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2155171414116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2962826197632).

2155171414116 is an abundant number, since it is smaller than the sum of its proper divisors (3770480981148).

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

2155171414116 is a wasteful number, since it uses less digits than its factorization.

2155171414116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40550 (or 40541 counting only the distinct ones).

The product of its digits is 33600, while the sum is 39.

The spelling of 2155171414116 in words is "two trillion, one hundred fifty-five billion, one hundred seventy-one million, four hundred fourteen thousand, one hundred sixteen".