2555660742117 has 8 divisors (see below), whose sum is σ = 3894340178496. Its totient is φ = 1460377566912.

The previous prime is 2555660742073. The next prime is 2555660742139. The reversal of 2555660742117 is 7112470665552.

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

It is not a de Polignac number, because 2555660742117 - 2¹⁰ = 2555660741093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2555660742117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555660542117) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 60849065268 + ... + 60849065309.

It is an arithmetic number, because the mean of its divisors is an integer number (486792522312).

Almost surely, 2^{2555660742117} is an apocalyptic number.

It is an amenable number.

2555660742117 is a deficient number, since it is larger than the sum of its proper divisors (1338679436379).

2555660742117 is a wasteful number, since it uses less digits than its factorization.

2555660742117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121698130587.

The product of its (nonzero) digits is 3528000, while the sum is 51.

The spelling of 2555660742117 in words is "two trillion, five hundred fifty-five billion, six hundred sixty million, seven hundred forty-two thousand, one hundred seventeen".