20108238336 has 240 divisors, whose sum is σ = 62808729984. Its totient is φ = 6410409984.

The previous prime is 20108238323. The next prime is 20108238343. The reversal of 20108238336 is 63383280102.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 20108238336.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2858055 + ... + 2865081.

Almost surely, 2^20108238336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20108238336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31404364992).

20108238336 is an abundant number, since it is smaller than the sum of its proper divisors (42700491648).

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

20108238336 is an frugal number, since it uses more digits than its factorization.

20108238336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7083 (or 7055 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 20108238336 in words is "twenty billion, one hundred eight million, two hundred thirty-eight thousand, three hundred thirty-six".