20711485344 has 192 divisors, whose sum is σ = 63189020160. Its totient is φ = 5873771520.

The previous prime is 20711485337. The next prime is 20711485381. The reversal of 20711485344 is 44358411702.

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, 1659094 + ... + 1671530.

It is an arithmetic number, because the mean of its divisors is an integer number (329109480).

Almost surely, 2^20711485344 is an apocalyptic number.

20711485344 is a gapful number since it is divisible by the number (24) 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 20711485344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31594510080).

20711485344 is an abundant number, since it is smaller than the sum of its proper divisors (42477534816).

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

20711485344 is a wasteful number, since it uses less digits than its factorization.

20711485344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12563 (or 12555 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The spelling of 20711485344 in words is "twenty billion, seven hundred eleven million, four hundred eighty-five thousand, three hundred forty-four".