255129343061 has 16 divisors (see below), whose sum is σ = 260148644784. Its totient is φ = 250160676864.

The previous prime is 255129343057. The next prime is 255129343099. The reversal of 255129343061 is 160343921552.

It can be written as a sum of positive squares in 8 ways, for example, as 92518780561 + 162610562500 = 304169^2 + 403250^2 .

It is a cyclic number.

It is not a de Polignac number, because 255129343061 - 2² = 255129343057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255129303061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49508261 + ... + 49513413.

It is an arithmetic number, because the mean of its divisors is an integer number (16259290299).

Almost surely, 2^255129343061 is an apocalyptic number.

It is an amenable number.

255129343061 is a deficient number, since it is larger than the sum of its proper divisors (5019301723).

255129343061 is a wasteful number, since it uses less digits than its factorization.

255129343061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9880.

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 255129343061 in words is "two hundred fifty-five billion, one hundred twenty-nine million, three hundred forty-three thousand, sixty-one".