20611306200 has 48 divisors (see below), whose sum is σ = 63895051080. Its totient is φ = 5496348160.

The previous prime is 20611306189. The next prime is 20611306201. The reversal of 20611306200 is 260311602.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20611306201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17175489 + ... + 17176688.

Almost surely, 2^20611306200 is an apocalyptic number.

20611306200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20611306200 is an abundant number, since it is smaller than the sum of its proper divisors (43283744880).

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

20611306200 is a wasteful number, since it uses less digits than its factorization.

20611306200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34352196 (or 34352187 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20611306200 its reverse (260311602), we get a palindrome (20871617802).

The spelling of 20611306200 in words is "twenty billion, six hundred eleven million, three hundred six thousand, two hundred".