2120616500 has 48 divisors (see below), whose sum is σ = 4730019840. Its totient is φ = 830189600.

The previous prime is 2120616497. The next prime is 2120616517. The reversal of 2120616500 is 56160212.

It is a congruent number.

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, 21620 + ... + 68619.

It is an arithmetic number, because the mean of its divisors is an integer number (98542080).

Almost surely, 2^2120616500 is an apocalyptic number.

2120616500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120616500 is an abundant number, since it is smaller than the sum of its proper divisors (2609403340).

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

2120616500 is a wasteful number, since it uses less digits than its factorization.

2120616500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90305 (or 90293 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 2120616500 is about 46050.1520084353. The cubic root of 2120616500 is about 1284.7561700804.

Adding to 2120616500 its reverse (56160212), we get a palindrome (2176776712).

The spelling of 2120616500 in words is "two billion, one hundred twenty million, six hundred sixteen thousand, five hundred".