2128611016 has 64 divisors (see below), whose sum is σ = 4660416000. Its totient is φ = 892539648.

The previous prime is 2128610977. The next prime is 2128611031. The reversal of 2128611016 is 6101168212.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1373410 + ... + 1374958.

It is an arithmetic number, because the mean of its divisors is an integer number (72819000).

Almost surely, 2^2128611016 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 2128611016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2330208000).

2128611016 is an abundant number, since it is smaller than the sum of its proper divisors (2531804984).

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

2128611016 is a wasteful number, since it uses less digits than its factorization.

2128611016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2078 (or 2074 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 2128611016 is about 46136.8726291672. The cubic root of 2128611016 is about 1286.3686137307.

Adding to 2128611016 its reverse (6101168212), we get a palindrome (8229779228).

The spelling of 2128611016 in words is "two billion, one hundred twenty-eight million, six hundred eleven thousand, sixteen".