20060443880 has 32 divisors (see below), whose sum is σ = 45296650440. Its totient is φ = 7995617280.

The previous prime is 20060443859. The next prime is 20060443913. The reversal of 20060443880 is 8834406002.

It can be written as a sum of positive squares in 4 ways, for example, as 19922193316 + 138250564 = 141146^2 + 11758^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20060443880.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 881129 + ... + 903608.

Almost surely, 2^20060443880 is an apocalyptic number.

20060443880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20060443880 is an abundant number, since it is smaller than the sum of its proper divisors (25236206560).

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

20060443880 is a wasteful number, since it uses less digits than its factorization.

20060443880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785029 (or 1785025 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

Adding to 20060443880 its reverse (8834406002), we get a palindrome (28894849882).

The spelling of 20060443880 in words is "twenty billion, sixty million, four hundred forty-three thousand, eight hundred eighty".