20734496568 has 96 divisors (see below), whose sum is σ = 58108377600. Its totient is φ = 6672283200.

The previous prime is 20734496561. The next prime is 20734496569. The reversal of 20734496568 is 86569443702.

20734496568 is a `hidden beast` number, since 2 + 0 + 7 + 34 + 49 + 6 + 568 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20734496561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 924123 + ... + 946293.

It is an arithmetic number, because the mean of its divisors is an integer number (605295600).

Almost surely, 2^20734496568 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 20734496568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29054188800).

20734496568 is an abundant number, since it is smaller than the sum of its proper divisors (37373881032).

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

20734496568 is a wasteful number, since it uses less digits than its factorization.

20734496568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22633 (or 22626 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

It can be divided in two parts, 2073 and 4496568, that added together give a square (4498641 = 2121²).

The spelling of 20734496568 in words is "twenty billion, seven hundred thirty-four million, four hundred ninety-six thousand, five hundred sixty-eight".