123404146055 has 32 divisors (see below), whose sum is σ = 161919959040. Its totient is φ = 89882012160.

The previous prime is 123404146051. The next prime is 123404146069. The reversal of 123404146055 is 550641404321.

It is not a de Polignac number, because 123404146055 - 2² = 123404146051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123404146051) by changing a digit.

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, 7578032 + ... + 7594298.

It is an arithmetic number, because the mean of its divisors is an integer number (5059998720).

Almost surely, 2^123404146055 is an apocalyptic number.

123404146055 is a deficient number, since it is larger than the sum of its proper divisors (38515812985).

123404146055 is a wasteful number, since it uses less digits than its factorization.

123404146055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19199.

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 123404146055 in words is "one hundred twenty-three billion, four hundred four million, one hundred forty-six thousand, fifty-five".