123344474556 has 48 divisors (see below), whose sum is σ = 292183879680. Its totient is φ = 40493615040.

The previous prime is 123344474551. The next prime is 123344474567. The reversal of 123344474556 is 655474443321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123344474551) 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 15 ways as a sum of consecutive naturals, for example, 63900 + ... + 500771.

It is an arithmetic number, because the mean of its divisors is an integer number (6087164160).

Almost surely, 2^123344474556 is an apocalyptic number.

It is an amenable number.

123344474556 is an abundant number, since it is smaller than the sum of its proper divisors (168839405124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123344474556 is a wasteful number, since it uses less digits than its factorization.

123344474556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564954 (or 564952 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 48.

The spelling of 123344474556 in words is "one hundred twenty-three billion, three hundred forty-four million, four hundred seventy-four thousand, five hundred fifty-six".