265243456520223 has 16 divisors (see below), whose sum is σ = 376454343974400. Its totient is φ = 165639911342400.

The previous prime is 265243456520177. The next prime is 265243456520279. The reversal of 265243456520223 is 322025654342562.

It is not a de Polignac number, because 265243456520223 - 2⁹ = 265243456519711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265243456520293) 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, 26142657703 + ... + 26142667848.

It is an arithmetic number, because the mean of its divisors is an integer number (23528396498400).

Almost surely, 2^{265243456520223} is an apocalyptic number.

265243456520223 is a deficient number, since it is larger than the sum of its proper divisors (111210887454177).

265243456520223 is a wasteful number, since it uses less digits than its factorization.

265243456520223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52285325662.

The product of its (nonzero) digits is 20736000, while the sum is 51.

The spelling of 265243456520223 in words is "two hundred sixty-five trillion, two hundred forty-three billion, four hundred fifty-six million, five hundred twenty thousand, two hundred twenty-three".