20344340550255 has 16 divisors (see below), whose sum is σ = 33344870366304. Its totient is φ = 10585673131520.

The previous prime is 20344340550253. The next prime is 20344340550269. The reversal of 20344340550255 is 55205504344302.

It is not a de Polignac number, because 20344340550255 - 2¹ = 20344340550253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344340550253) 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, 16540113654 + ... + 16540114883.

It is an arithmetic number, because the mean of its divisors is an integer number (2084054397894).

Almost surely, 2^{20344340550255} is an apocalyptic number.

20344340550255 is a deficient number, since it is larger than the sum of its proper divisors (13000529816049).

20344340550255 is a wasteful number, since it uses less digits than its factorization.

20344340550255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33080228586.

The product of its (nonzero) digits is 1440000, while the sum is 42.

Adding to 20344340550255 its reverse (55205504344302), we get a palindrome (75549844894557).

The spelling of 20344340550255 in words is "twenty trillion, three hundred forty-four billion, three hundred forty million, five hundred fifty thousand, two hundred fifty-five".