255113661205 has 16 divisors (see below), whose sum is σ = 329789061504. Its totient is φ = 188332361280.

The previous prime is 255113661193. The next prime is 255113661217. The reversal of 255113661205 is 502166311552.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (255113661193) and next prime (255113661217).

It is not a de Polignac number, because 255113661205 - 2¹⁵ = 255113628437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 408601 + ... + 822910.

It is an arithmetic number, because the mean of its divisors is an integer number (20611816344).

Almost surely, 2^255113661205 is an apocalyptic number.

It is an amenable number.

255113661205 is a deficient number, since it is larger than the sum of its proper divisors (74675400299).

255113661205 is a wasteful number, since it uses less digits than its factorization.

255113661205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234716.

The product of its (nonzero) digits is 54000, while the sum is 37.

Adding to 255113661205 its reverse (502166311552), we get a palindrome (757279972757).

The spelling of 255113661205 in words is "two hundred fifty-five billion, one hundred thirteen million, six hundred sixty-one thousand, two hundred five".