265243136042255 has 16 divisors (see below), whose sum is σ = 363763766583360. Its totient is φ = 181880131852032.

The previous prime is 265243136042251. The next prime is 265243136042257. The reversal of 265243136042255 is 552240631342562.

It is a cyclic number.

It is not a de Polignac number, because 265243136042255 - 2² = 265243136042251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265243136042251) 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, 10828604 + ... + 25450833.

It is an arithmetic number, because the mean of its divisors is an integer number (22735235411460).

Almost surely, 2^{265243136042255} is an apocalyptic number.

265243136042255 is a deficient number, since it is larger than the sum of its proper divisors (98520630541105).

265243136042255 is a wasteful number, since it uses less digits than its factorization.

265243136042255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36488338.

The product of its (nonzero) digits is 10368000, while the sum is 50.

The spelling of 265243136042255 in words is "two hundred sixty-five trillion, two hundred forty-three billion, one hundred thirty-six million, forty-two thousand, two hundred fifty-five".