20326120920 has 192 divisors, whose sum is σ = 77932707840. Its totient is φ = 4496083200.

The previous prime is 20326120883. The next prime is 20326120921. The reversal of 20326120920 is 2902162302.

20326120920 is a `hidden beast` number, since 20 + 3 + 2 + 612 + 0 + 9 + 20 = 666.

20326120920 is nontrivially palindromic in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20326120921) 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, 51976 + ... + 208215.

It is an arithmetic number, because the mean of its divisors is an integer number (405899520).

Almost surely, 2^20326120920 is an apocalyptic number.

20326120920 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 20326120920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38966353920).

20326120920 is an abundant number, since it is smaller than the sum of its proper divisors (57606586920).

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

20326120920 is a wasteful number, since it uses less digits than its factorization.

20326120920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260246 (or 260239 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

It can be divided in two parts, 20326 and 120920, that added together give a triangular number (141246 = T₅₃₁).

The spelling of 20326120920 in words is "twenty billion, three hundred twenty-six million, one hundred twenty thousand, nine hundred twenty".