20440440220223 has 8 divisors (see below), whose sum is σ = 20885765338368. Its totient is φ = 19995549357784.

The previous prime is 20440440220169. The next prime is 20440440220229. The reversal of 20440440220223 is 32202204404402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20440440220223 - 2⁶ = 20440440220159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20440440220229) 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, 108468761 + ... + 108657042.

It is an arithmetic number, because the mean of its divisors is an integer number (2610720667296).

Almost surely, 2^{20440440220223} is an apocalyptic number.

20440440220223 is a deficient number, since it is larger than the sum of its proper divisors (445325118145).

20440440220223 is a wasteful number, since it uses less digits than its factorization.

20440440220223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217127853.

The product of its (nonzero) digits is 24576, while the sum is 29.

Adding to 20440440220223 its reverse (32202204404402), we get a palindrome (52642644624625).

The spelling of 20440440220223 in words is "twenty trillion, four hundred forty billion, four hundred forty million, two hundred twenty thousand, two hundred twenty-three".