445247742115220 has 24 divisors (see below), whose sum is σ = 1020022100119008. Its totient is φ = 161908269860000.

The previous prime is 445247742115171. The next prime is 445247742115223. The reversal of 445247742115220 is 22511247742544.

It is a happy number.

It is a super-3 number, since 3×445247742115220³ (a number of 45 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445247742115223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1011926686406 + ... + 1011926686845.

It is an arithmetic number, because the mean of its divisors is an integer number (42500920838292).

Almost surely, 2^{445247742115220} is an apocalyptic number.

It is an amenable number.

445247742115220 is an abundant number, since it is smaller than the sum of its proper divisors (574774358003788).

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

445247742115220 is a wasteful number, since it uses less digits than its factorization.

445247742115220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023853373271 (or 2023853373269 counting only the distinct ones).

The product of its (nonzero) digits is 5017600, while the sum is 50.

Adding to 445247742115220 its reverse (22511247742544), we get a palindrome (467758989857764).

The spelling of 445247742115220 in words is "four hundred forty-five trillion, two hundred forty-seven billion, seven hundred forty-two million, one hundred fifteen thousand, two hundred twenty".