20385683207592 has 128 divisors (see below), whose sum is σ = 54696420495360. Its totient is φ = 6314956750080.

The previous prime is 20385683207579. The next prime is 20385683207611. The reversal of 20385683207592 is 29570238658302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13390753 + ... + 14835215.

It is an arithmetic number, because the mean of its divisors is an integer number (427315785120).

Almost surely, 2^{20385683207592} 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 20385683207592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27348210247680).

20385683207592 is an abundant number, since it is smaller than the sum of its proper divisors (34310737287768).

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

20385683207592 is a wasteful number, since it uses less digits than its factorization.

20385683207592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445223 (or 1445219 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 60.

The spelling of 20385683207592 in words is "twenty trillion, three hundred eighty-five billion, six hundred eighty-three million, two hundred seven thousand, five hundred ninety-two".