445144021401 has 16 divisors (see below), whose sum is σ = 619348544640. Its totient is φ = 283851828480.

The previous prime is 445144021337. The next prime is 445144021403. The reversal of 445144021401 is 104120441544.

It is not a de Polignac number, because 445144021401 - 2⁶ = 445144021337 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (445144021403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3158091 + ... + 3296031.

It is an arithmetic number, because the mean of its divisors is an integer number (38709284040).

Almost surely, 2^445144021401 is an apocalyptic number.

It is an amenable number.

445144021401 is a deficient number, since it is larger than the sum of its proper divisors (174204523239).

445144021401 is a wasteful number, since it uses less digits than its factorization.

445144021401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184736.

The product of its (nonzero) digits is 10240, while the sum is 30.

Adding to 445144021401 its reverse (104120441544), we get a palindrome (549264462945).

The spelling of 445144021401 in words is "four hundred forty-five billion, one hundred forty-four million, twenty-one thousand, four hundred one".