20344555153255 has 16 divisors (see below), whose sum is σ = 25267956829920. Its totient is φ = 15706545780352.

The previous prime is 20344555153253. The next prime is 20344555153261. The reversal of 20344555153255 is 55235155544302.

It is a cyclic number.

It is not a de Polignac number, because 20344555153255 - 2¹ = 20344555153253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20344555153199 and 20344555153208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344555153253) 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, 34839949 + ... + 35419078.

It is an arithmetic number, because the mean of its divisors is an integer number (1579247301870).

Almost surely, 2^{20344555153255} is an apocalyptic number.

20344555153255 is a deficient number, since it is larger than the sum of its proper divisors (4923401676665).

20344555153255 is a wasteful number, since it uses less digits than its factorization.

20344555153255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70261058.

The product of its (nonzero) digits is 9000000, while the sum is 49.

The spelling of 20344555153255 in words is "twenty trillion, three hundred forty-four billion, five hundred fifty-five million, one hundred fifty-three thousand, two hundred fifty-five".