12401605044 has 36 divisors (see below), whose sum is σ = 31939987716. Its totient is φ = 4055870208.

The previous prime is 12401605031. The next prime is 12401605063. The reversal of 12401605044 is 44050610421.

12401605044 is a `hidden beast` number, since 12 + 4 + 0 + 1 + 605 + 0 + 44 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5473040400 + 6928564644 = 73980^2 + 83238^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 12401604999 and 12401605017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3247989 + ... + 3251804.

It is an arithmetic number, because the mean of its divisors is an integer number (887221881).

Almost surely, 2^12401605044 is an apocalyptic number.

It is an amenable number.

12401605044 is an abundant number, since it is smaller than the sum of its proper divisors (19538382672).

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

12401605044 is a wasteful number, since it uses less digits than its factorization.

12401605044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6499856 (or 6499851 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The spelling of 12401605044 in words is "twelve billion, four hundred one million, six hundred five thousand, forty-four".