20810323352 has 96 divisors (see below), whose sum is σ = 48787653600. Its totient is φ = 8147423232.

The previous prime is 20810323337. The next prime is 20810323399. The reversal of 20810323352 is 25332301802.

It is a happy number.

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, 906674 + ... + 929342.

It is an arithmetic number, because the mean of its divisors is an integer number (508204725).

Almost surely, 2^20810323352 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 20810323352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24393826800).

20810323352 is an abundant number, since it is smaller than the sum of its proper divisors (27977330248).

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

20810323352 is a wasteful number, since it uses less digits than its factorization.

20810323352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22805 (or 22788 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The spelling of 20810323352 in words is "twenty billion, eight hundred ten million, three hundred twenty-three thousand, three hundred fifty-two".