12605075558 has 8 divisors (see below), whose sum is σ = 18915443352. Its totient is φ = 6299927776.

The previous prime is 12605075543. The next prime is 12605075569. The reversal of 12605075558 is 85557050621.

12605075558 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×12605075558³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1298960 + ... + 1308627.

It is an arithmetic number, because the mean of its divisors is an integer number (2364430419).

Almost surely, 2^12605075558 is an apocalyptic number.

12605075558 is a deficient number, since it is larger than the sum of its proper divisors (6310367794).

12605075558 is a wasteful number, since it uses less digits than its factorization.

12605075558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2610006.

The product of its (nonzero) digits is 420000, while the sum is 44.

The spelling of 12605075558 in words is "twelve billion, six hundred five million, seventy-five thousand, five hundred fifty-eight".