20323426034156 has 96 divisors (see below), whose sum is σ = 43331832835200. Its totient is φ = 8141699579904.

The previous prime is 20323426034137. The next prime is 20323426034161. The reversal of 20323426034156 is 65143062432302.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1086049856 + ... + 1086068568.

It is an arithmetic number, because the mean of its divisors is an integer number (451373258700).

Almost surely, 2^{20323426034156} 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 20323426034156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21665916417600).

20323426034156 is an abundant number, since it is smaller than the sum of its proper divisors (23008406801044).

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

20323426034156 is a wasteful number, since it uses less digits than its factorization.

20323426034156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34203 (or 34201 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 41.

Adding to 20323426034156 its reverse (65143062432302), we get a palindrome (85466488466458).

The spelling of 20323426034156 in words is "twenty trillion, three hundred twenty-three billion, four hundred twenty-six million, thirty-four thousand, one hundred fifty-six".