20445401441 has 16 divisors (see below), whose sum is σ = 21899606400. Its totient is φ = 19020365568.

The previous prime is 20445401437. The next prime is 20445401443. The reversal of 20445401441 is 14410454402.

It is a cyclic number.

It is not a de Polignac number, because 20445401441 - 2² = 20445401437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20445401443) 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, 522236 + ... + 560018.

It is an arithmetic number, because the mean of its divisors is an integer number (1368725400).

Almost surely, 2^20445401441 is an apocalyptic number.

It is an amenable number.

20445401441 is a deficient number, since it is larger than the sum of its proper divisors (1454204959).

20445401441 is a wasteful number, since it uses less digits than its factorization.

20445401441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38168.

The product of its (nonzero) digits is 10240, while the sum is 29.

Adding to 20445401441 its reverse (14410454402), we get a palindrome (34855855843).

The spelling of 20445401441 in words is "twenty billion, four hundred forty-five million, four hundred one thousand, four hundred forty-one".