2116577934 has 48 divisors (see below), whose sum is σ = 4759391520. Its totient is φ = 678995520.

The previous prime is 2116577923. The next prime is 2116577951. The reversal of 2116577934 is 4397756112.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2116577934.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 159079 + ... + 171869.

It is an arithmetic number, because the mean of its divisors is an integer number (99153990).

Almost surely, 2^2116577934 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2116577934, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2379695760).

2116577934 is an abundant number, since it is smaller than the sum of its proper divisors (2642813586).

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

2116577934 is a wasteful number, since it uses less digits than its factorization.

2116577934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13145 (or 13142 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 2116577934 is about 46006.2814624264. The cubic root of 2116577934 is about 1283.9400756673.

It can be divided in two parts, 21165 and 77934, that added together give a palindrome (99099).

The spelling of 2116577934 in words is "two billion, one hundred sixteen million, five hundred seventy-seven thousand, nine hundred thirty-four".