2005112154255 has 64 divisors (see below), whose sum is σ = 3877756108800. Its totient is φ = 864263675520.

The previous prime is 2005112154251. The next prime is 2005112154257. The reversal of 2005112154255 is 5524512115002.

It is not a de Polignac number, because 2005112154255 - 2² = 2005112154251 is a prime.

It is a super-2 number, since 2×2005112154255² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005112154251) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1960735 + ... + 2802624.

It is an arithmetic number, because the mean of its divisors is an integer number (60589939200).

Almost surely, 2^{2005112154255} is an apocalyptic number.

2005112154255 is a deficient number, since it is larger than the sum of its proper divisors (1872643954545).

2005112154255 is a wasteful number, since it uses less digits than its factorization.

2005112154255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4763604.

The product of its (nonzero) digits is 20000, while the sum is 33.

Adding to 2005112154255 its reverse (5524512115002), we get a palindrome (7529624269257).

The spelling of 2005112154255 in words is "two trillion, five billion, one hundred twelve million, one hundred fifty-four thousand, two hundred fifty-five".