20704243060 has 12 divisors (see below), whose sum is σ = 43478910468. Its totient is φ = 8281697216.

The previous prime is 20704243009. The next prime is 20704243061. The reversal of 20704243060 is 6034240702.

It can be written as a sum of positive squares in 2 ways, for example, as 16391168784 + 4313074276 = 128028^2 + 65674^2 .

It is a super-3 number, since 3×20704243060³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20704243061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517606057 + ... + 517606096.

It is an arithmetic number, because the mean of its divisors is an integer number (3623242539).

Almost surely, 2^20704243060 is an apocalyptic number.

20704243060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20704243060 is an abundant number, since it is smaller than the sum of its proper divisors (22774667408).

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

20704243060 is a wasteful number, since it uses less digits than its factorization.

20704243060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035212162 (or 1035212160 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

Adding to 20704243060 its reverse (6034240702), we get a palindrome (26738483762).

The spelling of 20704243060 in words is "twenty billion, seven hundred four million, two hundred forty-three thousand, sixty".