20664460060 has 12 divisors (see below), whose sum is σ = 43395366168. Its totient is φ = 8265784016.

The previous prime is 20664460039. The next prime is 20664460067. The reversal of 20664460060 is 6006446602.

It is a junction number, because it is equal to n+sod(n) for n = 20664459998 and 20664460025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20664460067) 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, 516611482 + ... + 516611521.

It is an arithmetic number, because the mean of its divisors is an integer number (3616280514).

Almost surely, 2^20664460060 is an apocalyptic number.

20664460060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20664460060 is an abundant number, since it is smaller than the sum of its proper divisors (22730906108).

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

20664460060 is a wasteful number, since it uses less digits than its factorization.

20664460060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033223012 (or 1033223010 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The spelling of 20664460060 in words is "twenty billion, six hundred sixty-four million, four hundred sixty thousand, sixty".