4445220400500 has 192 divisors, whose sum is σ = 14136801509376. Its totient is φ = 1076442640000.

The previous prime is 4445220400471. The next prime is 4445220400501. The reversal of 4445220400500 is 50040225444.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4445220400501) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14883637 + ... + 15179363.

It is an arithmetic number, because the mean of its divisors is an integer number (73629174528).

Almost surely, 2^{4445220400500} 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 4445220400500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7068400754688).

4445220400500 is an abundant number, since it is smaller than the sum of its proper divisors (9691581108876).

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

4445220400500 is a wasteful number, since it uses less digits than its factorization.

4445220400500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296671 (or 296659 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 30.

Adding to 4445220400500 its reverse (50040225444), we get a palindrome (4495260625944).

The spelling of 4445220400500 in words is "four trillion, four hundred forty-five billion, two hundred twenty million, four hundred thousand, five hundred".