20600000000 has 180 divisors, whose sum is σ = 51949192152. Its totient is φ = 8160000000.

The previous prime is 20599999997. The next prime is 20600000023. The reversal of 20600000000 is 602.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 199999949 + ... + 200000051.

Almost surely, 2^20600000000 is an apocalyptic number.

20600000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20600000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25974596076).

20600000000 is an abundant number, since it is smaller than the sum of its proper divisors (31349192152).

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

20600000000 is an frugal number, since it uses more digits than its factorization.

20600000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 110 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

Adding to 20600000000 its reverse (602), we get a palindrome (20600000602).

The spelling of 20600000000 in words is "twenty billion, six hundred million", and thus it is an aban number.