2117155776 has 28 divisors (see below), whose sum is σ = 5601641832. Its totient is φ = 705718528.

The previous prime is 2117155721. The next prime is 2117155787. The reversal of 2117155776 is 6775517112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5513235 + ... + 5513618.

Almost surely, 2^2117155776 is an apocalyptic number.

It is an amenable number.

2117155776 is an abundant number, since it is smaller than the sum of its proper divisors (3484486056).

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

2117155776 is a wasteful number, since it uses less digits than its factorization.

2117155776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11026868 (or 11026858 counting only the distinct ones).

The product of its digits is 102900, while the sum is 42.

The square root of 2117155776 is about 46012.5610676041. The cubic root of 2117155776 is about 1284.0569068634.

The spelling of 2117155776 in words is "two billion, one hundred seventeen million, one hundred fifty-five thousand, seven hundred seventy-six".