265041163221 has 16 divisors (see below), whose sum is σ = 353663419200. Its totient is φ = 176556568320.

The previous prime is 265041163193. The next prime is 265041163249. The reversal of 265041163221 is 122361140562.

It is an interprime number because it is at equal distance from previous prime (265041163193) and next prime (265041163249).

It is not a de Polignac number, because 265041163221 - 2¹¹ = 265041161173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265041163721) 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, 36061255 + ... + 36068603.

It is an arithmetic number, because the mean of its divisors is an integer number (22103963700).

Almost surely, 2^265041163221 is an apocalyptic number.

It is an amenable number.

265041163221 is a deficient number, since it is larger than the sum of its proper divisors (88622255979).

265041163221 is a wasteful number, since it uses less digits than its factorization.

265041163221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15076.

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 265041163221 in words is "two hundred sixty-five billion, forty-one million, one hundred sixty-three thousand, two hundred twenty-one".