265328009855 has 4 divisors (see below), whose sum is σ = 318393611832. Its totient is φ = 212262407880.

The previous prime is 265328009839. The next prime is 265328009857. The reversal of 265328009855 is 558900823562.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 265328009855 - 2⁴ = 265328009839 is a prime.

It is a super-2 number, since 2×265328009855² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 265328009797 and 265328009806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265328009857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26532800981 + ... + 26532800990.

It is an arithmetic number, because the mean of its divisors is an integer number (79598402958).

Almost surely, 2^265328009855 is an apocalyptic number.

265328009855 is a deficient number, since it is larger than the sum of its proper divisors (53065601977).

265328009855 is an equidigital number, since it uses as much as digits as its factorization.

265328009855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53065601976.

The product of its (nonzero) digits is 5184000, while the sum is 53.

The spelling of 265328009855 in words is "two hundred sixty-five billion, three hundred twenty-eight million, nine thousand, eight hundred fifty-five".