20602466244 has 72 divisors (see below), whose sum is σ = 53524791320. Its totient is φ = 6677033472.

The previous prime is 20602466239. The next prime is 20602466249. The reversal of 20602466244 is 44266420602.

20602466244 is a `hidden beast` number, since 2 + 0 + 6 + 0 + 24 + 6 + 624 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (20602466239) and next prime (20602466249).

It can be written as a sum of positive squares in 4 ways, for example, as 19130209344 + 1472256900 = 138312^2 + 38370^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 20602466199 and 20602466208.

It is not an unprimeable number, because it can be changed into a prime (20602466249) 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, 2138382 + ... + 2147994.

Almost surely, 2^20602466244 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 20602466244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26762395660).

20602466244 is an abundant number, since it is smaller than the sum of its proper divisors (32922325076).

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

20602466244 is a wasteful number, since it uses less digits than its factorization.

20602466244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11269 (or 11264 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 20602466244 its reverse (44266420602), we get a palindrome (64868886846).

The spelling of 20602466244 in words is "twenty billion, six hundred two million, four hundred sixty-six thousand, two hundred forty-four".