20025326464 has 192 divisors, whose sum is σ = 49188643200. Its totient is φ = 8034723840.

The previous prime is 20025326449. The next prime is 20025326513. The reversal of 20025326464 is 46462352002.

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, 5471067 + ... + 5474725.

It is an arithmetic number, because the mean of its divisors is an integer number (256190850).

Almost surely, 2^20025326464 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 20025326464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24594321600).

20025326464 is an abundant number, since it is smaller than the sum of its proper divisors (29163316736).

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

20025326464 is a wasteful number, since it uses less digits than its factorization.

20025326464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3733 (or 3708 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 20025326464 its reverse (46462352002), we get a palindrome (66487678466).

The spelling of 20025326464 in words is "twenty billion, twenty-five million, three hundred twenty-six thousand, four hundred sixty-four".