20136980000 has 120 divisors (see below), whose sum is σ = 51139630080. Its totient is φ = 7794720000.

The previous prime is 20136979997. The next prime is 20136980021. The reversal of 20136980000 is 8963102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 603761 + ... + 636239.

It is an arithmetic number, because the mean of its divisors is an integer number (426163584).

Almost surely, 2^20136980000 is an apocalyptic number.

20136980000 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 20136980000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25569815040).

20136980000 is an abundant number, since it is smaller than the sum of its proper divisors (31002650080).

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

20136980000 is an equidigital number, since it uses as much as digits as its factorization.

20136980000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32540 (or 32517 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 20136980000 in words is "twenty billion, one hundred thirty-six million, nine hundred eighty thousand".