2116535500 has 24 divisors (see below), whose sum is σ = 4622514624. Its totient is φ = 846614000.

The previous prime is 2116535461. The next prime is 2116535503. The reversal of 2116535500 is 55356112.

It is not an unprimeable number, because it can be changed into a prime (2116535503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2116036 + ... + 2117035.

It is an arithmetic number, because the mean of its divisors is an integer number (192604776).

Almost surely, 2^2116535500 is an apocalyptic number.

2116535500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2116535500 is an abundant number, since it is smaller than the sum of its proper divisors (2505979124).

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

2116535500 is a wasteful number, since it uses less digits than its factorization.

2116535500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4233090 (or 4233078 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 2116535500 is about 46005.8202839597. The cubic root of 2116535500 is about 1283.9314952954.

It can be divided in two parts, 21165 and 35500, that added together give a palindrome (56665).

The spelling of 2116535500 in words is "two billion, one hundred sixteen million, five hundred thirty-five thousand, five hundred".