20325705792 has 224 divisors, whose sum is σ = 62992650240. Its totient is φ = 5664215040.

The previous prime is 20325705731. The next prime is 20325705809. The reversal of 20325705792 is 29750752302.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10862617 + ... + 10864487.

Almost surely, 2^20325705792 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 20325705792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31496325120).

20325705792 is an abundant number, since it is smaller than the sum of its proper divisors (42666944448).

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

20325705792 is a wasteful number, since it uses less digits than its factorization.

20325705792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2089 (or 2079 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 42.

The spelling of 20325705792 in words is "twenty billion, three hundred twenty-five million, seven hundred five thousand, seven hundred ninety-two".