20244434455 has 8 divisors (see below), whose sum is σ = 27763795872. Its totient is φ = 13881897888.

The previous prime is 20244434453. The next prime is 20244434459. The reversal of 20244434455 is 55443444202.

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 20244434455 - 2¹ = 20244434453 is a prime.

It is a super-2 number, since 2×20244434455² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20244434453) 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, 289206172 + ... + 289206241.

It is an arithmetic number, because the mean of its divisors is an integer number (3470474484).

Almost surely, 2^20244434455 is an apocalyptic number.

20244434455 is a deficient number, since it is larger than the sum of its proper divisors (7519361417).

20244434455 is an equidigital number, since it uses as much as digits as its factorization.

20244434455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578412425.

The product of its (nonzero) digits is 307200, while the sum is 37.

Adding to 20244434455 its reverse (55443444202), we get a palindrome (75687878657).

The spelling of 20244434455 in words is "twenty billion, two hundred forty-four million, four hundred thirty-four thousand, four hundred fifty-five".