123045254255455 has 48 divisors (see below), whose sum is σ = 179825780519424. Its totient is φ = 79157106740160.

The previous prime is 123045254255453. The next prime is 123045254255479. The reversal of 123045254255455 is 554552452540321.

It is not a de Polignac number, because 123045254255455 - 2¹ = 123045254255453 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 (123045254255453) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45972601 + ... + 48575410.

It is an arithmetic number, because the mean of its divisors is an integer number (3746370427488).

Almost surely, 2^{123045254255455} is an apocalyptic number.

123045254255455 is a deficient number, since it is larger than the sum of its proper divisors (56780526263969).

123045254255455 is a wasteful number, since it uses less digits than its factorization.

123045254255455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94548164 (or 94548145 counting only the distinct ones).

The product of its (nonzero) digits is 24000000, while the sum is 52.

The spelling of 123045254255455 in words is "one hundred twenty-three trillion, forty-five billion, two hundred fifty-four million, two hundred fifty-five thousand, four hundred fifty-five".