255171643011 has 16 divisors (see below), whose sum is σ = 381774959520. Its totient is φ = 168430125600.

The previous prime is 255171642991. The next prime is 255171643019. The reversal of 255171643011 is 110346171552.

255171643011 is a `hidden beast` number, since 2 + 5 + 5 + 1 + 7 + 1 + 643 + 0 + 1 + 1 = 666.

255171643011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 255171643011 - 2²¹ = 255169545859 is a prime.

It is a super-2 number, since 2×255171643011² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (255171643019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46783420 + ... + 46788873.

It is an arithmetic number, because the mean of its divisors is an integer number (23860934970).

Almost surely, 2^255171643011 is an apocalyptic number.

255171643011 is a deficient number, since it is larger than the sum of its proper divisors (126603316509).

255171643011 is a wasteful number, since it uses less digits than its factorization.

255171643011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93572403 (or 93572397 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The spelling of 255171643011 in words is "two hundred fifty-five billion, one hundred seventy-one million, six hundred forty-three thousand, eleven".