20613036000 has 192 divisors, whose sum is σ = 67779706176. Its totient is φ = 5476352000.

The previous prime is 20613035987. The next prime is 20613036001. The reversal of 20613036000 is 63031602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20613036001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3368944 + ... + 3375056.

It is an arithmetic number, because the mean of its divisors is an integer number (353019303).

Almost surely, 2^20613036000 is an apocalyptic number.

20613036000 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 20613036000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33889853088).

20613036000 is an abundant number, since it is smaller than the sum of its proper divisors (47166670176).

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

20613036000 is a wasteful number, since it uses less digits than its factorization.

20613036000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6422 (or 6404 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20613036000 its reverse (63031602), we get a palindrome (20676067602).

The spelling of 20613036000 in words is "twenty billion, six hundred thirteen million, thirty-six thousand".