2000216500 has 48 divisors (see below), whose sum is σ = 4373381376. Its totient is φ = 799188000.

The previous prime is 2000216443. The next prime is 2000216501. The reversal of 2000216500 is 56120002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000216501) 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 15 ways as a sum of consecutive naturals, for example, 609865 + ... + 613135.

It is an arithmetic number, because the mean of its divisors is an integer number (91112112).

Almost surely, 2^2000216500 is an apocalyptic number.

2000216500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2000216500 is an abundant number, since it is smaller than the sum of its proper divisors (2373164876).

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

2000216500 is a wasteful number, since it uses less digits than its factorization.

2000216500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4513 (or 4501 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2000216500 is about 44723.7800280790. The cubic root of 2000216500 is about 1259.9665104058.

Adding to 2000216500 its reverse (56120002), we get a palindrome (2056336502).

The spelling of 2000216500 in words is "two billion, two hundred sixteen thousand, five hundred".