13044020220 has 864 divisors, whose sum is σ = 54483609600. Its totient is φ = 2535287040.

The previous prime is 13044020207. The next prime is 13044020237. The reversal of 13044020220 is 2202044031.

13044020220 is a `hidden beast` number, since 1 + 3 + 0 + 440 + 2 + 0 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 13044020193 and 13044020202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 165114141 + ... + 165114219.

Almost surely, 2^13044020220 is an apocalyptic number.

13044020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13044020220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27241804800).

13044020220 is an abundant number, since it is smaller than the sum of its proper divisors (41439589380).

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

13044020220 is a wasteful number, since it uses less digits than its factorization.

13044020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 13044020220 its reverse (2202044031), we get a palindrome (15246064251).

The spelling of 13044020220 in words is "thirteen billion, forty-four million, twenty thousand, two hundred twenty".