2155808275013 has 8 divisors (see below), whose sum is σ = 2160355124928. Its totient is φ = 2151266161824.

The previous prime is 2155808275003. The next prime is 2155808275031. The reversal of 2155808275013 is 3105728085512.

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

It is a cyclic number.

It is not a de Polignac number, because 2155808275013 - 2²⁰ = 2155807226437 is a prime.

It is a super-2 number, since 2×2155808275013² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155808275003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272231 + ... + 2094212.

It is an arithmetic number, because the mean of its divisors is an integer number (270044390616).

Almost surely, 2^{2155808275013} is an apocalyptic number.

It is an amenable number.

2155808275013 is a deficient number, since it is larger than the sum of its proper divisors (4546849915).

2155808275013 is a wasteful number, since it uses less digits than its factorization.

2155808275013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368363.

The product of its (nonzero) digits is 672000, while the sum is 47.

The spelling of 2155808275013 in words is "two trillion, one hundred fifty-five billion, eight hundred eight million, two hundred seventy-five thousand, thirteen".