445004120000 has 210 divisors, whose sum is σ = 1212913387224. Its totient is φ = 161817920000.

The previous prime is 445004119999. The next prime is 445004120027. The reversal of 445004120000 is 21400544.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 4794029 + ... + 4885971.

Almost surely, 2^445004120000 is an apocalyptic number.

445004120000 is a gapful number since it is divisible by the number (40) 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 445004120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (606456693612).

445004120000 is an abundant number, since it is smaller than the sum of its proper divisors (767909267224).

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

445004120000 is an equidigital number, since it uses as much as digits as its factorization.

445004120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91997 (or 91961 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 445004120000 its reverse (21400544), we get a palindrome (445025520544).

The spelling of 445004120000 in words is "four hundred forty-five billion, four million, one hundred twenty thousand".