20343126832 has 80 divisors (see below), whose sum is σ = 45485977600. Its totient is φ = 8633661696.

The previous prime is 20343126821. The next prime is 20343126833. The reversal of 20343126832 is 23862134302.

It is not an unprimeable number, because it can be changed into a prime (20343126833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4968178 + ... + 4972270.

It is an arithmetic number, because the mean of its divisors is an integer number (568574720).

Almost surely, 2^20343126832 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 20343126832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22742988800).

20343126832 is an abundant number, since it is smaller than the sum of its proper divisors (25142850768).

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

20343126832 is a wasteful number, since it uses less digits than its factorization.

20343126832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4530 (or 4524 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The spelling of 20343126832 in words is "twenty billion, three hundred forty-three million, one hundred twenty-six thousand, eight hundred thirty-two".