20204952336 has 560 divisors, whose sum is σ = 67917795840. Its totient is φ = 5777879040.

The previous prime is 20204952331. The next prime is 20204952371. The reversal of 20204952336 is 63325940202.

It is a happy number.

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 20204952336.

It is not an unprimeable number, because it can be changed into a prime (20204952331) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 116791546 + ... + 116791718.

Almost surely, 2^20204952336 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 20204952336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33958897920).

20204952336 is an abundant number, since it is smaller than the sum of its proper divisors (47712843504).

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

20204952336 is a wasteful number, since it uses less digits than its factorization.

20204952336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 20204952336 in words is "twenty billion, two hundred four million, nine hundred fifty-two thousand, three hundred thirty-six".