12017067775557 has 16 divisors (see below), whose sum is σ = 17850286352640. Its totient is φ = 7140114539712.

The previous prime is 12017067775547. The next prime is 12017067775591. The reversal of 12017067775557 is 75557776071021.

It is a happy number.

It is not a de Polignac number, because 12017067775557 - 2¹¹ = 12017067773509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12017067775557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12017067775547) 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, 5312584093 + ... + 5312586354.

It is an arithmetic number, because the mean of its divisors is an integer number (1115642897040).

Almost surely, 2^{12017067775557} is an apocalyptic number.

It is an amenable number.

12017067775557 is a deficient number, since it is larger than the sum of its proper divisors (5833218577083).

12017067775557 is a wasteful number, since it uses less digits than its factorization.

12017067775557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10625170492.

The product of its (nonzero) digits is 25210500, while the sum is 60.

The spelling of 12017067775557 in words is "twelve trillion, seventeen billion, sixty-seven million, seven hundred seventy-five thousand, five hundred fifty-seven".