20681341350 has 48 divisors (see below), whose sum is σ = 53989193280. Its totient is φ = 5224759200.

The previous prime is 20681341339. The next prime is 20681341367. The reversal of 20681341350 is 5314318602.

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, 3625456 + ... + 3631155.

It is an arithmetic number, because the mean of its divisors is an integer number (1124774860).

Almost surely, 2^20681341350 is an apocalyptic number.

20681341350 is an abundant number, since it is smaller than the sum of its proper divisors (33307851930).

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

20681341350 is a wasteful number, since it uses less digits than its factorization.

20681341350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7256645 (or 7256640 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

Adding to 20681341350 its reverse (5314318602), we get a palindrome (25995659952).

The spelling of 20681341350 in words is "twenty billion, six hundred eighty-one million, three hundred forty-one thousand, three hundred fifty".