20613382700 has 144 divisors (see below), whose sum is σ = 47200312320. Its totient is φ = 7803371520.

The previous prime is 20613382693. The next prime is 20613382709. The reversal of 20613382700 is 728331602.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20613382709) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35724812 + ... + 35725388.

Almost surely, 2^20613382700 is an apocalyptic number.

20613382700 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 20613382700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23600156160).

20613382700 is an abundant number, since it is smaller than the sum of its proper divisors (26586929620).

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

20613382700 is a wasteful number, since it uses less digits than its factorization.

20613382700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844 (or 837 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The spelling of 20613382700 in words is "twenty billion, six hundred thirteen million, three hundred eighty-two thousand, seven hundred".