123454115455255 has 32 divisors (see below), whose sum is σ = 166522244515200. Its totient is φ = 87178806105600.

The previous prime is 123454115455243. The next prime is 123454115455261. The reversal of 123454115455255 is 552554511454321.

It is not a de Polignac number, because 123454115455255 - 2¹⁵ = 123454115422487 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5623180 + ... + 16689169.

It is an arithmetic number, because the mean of its divisors is an integer number (5203820141100).

Almost surely, 2^{123454115455255} is an apocalyptic number.

123454115455255 is a deficient number, since it is larger than the sum of its proper divisors (43068129059945).

123454115455255 is a wasteful number, since it uses less digits than its factorization.

123454115455255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22316091.

The product of its digits is 12000000, while the sum is 52.

The spelling of 123454115455255 in words is "one hundred twenty-three trillion, four hundred fifty-four billion, one hundred fifteen million, four hundred fifty-five thousand, two hundred fifty-five".