265161172027 has 16 divisors (see below), whose sum is σ = 272480313600. Its totient is φ = 257942374560.

The previous prime is 265161171991. The next prime is 265161172037. The reversal of 265161172027 is 720271161562.

It is a cyclic number.

It is not a de Polignac number, because 265161172027 - 2¹⁵ = 265161139259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (265161172037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5035002 + ... + 5087392.

It is an arithmetic number, because the mean of its divisors is an integer number (17030019600).

Almost surely, 2^265161172027 is an apocalyptic number.

265161172027 is a deficient number, since it is larger than the sum of its proper divisors (7319141573).

265161172027 is a wasteful number, since it uses less digits than its factorization.

265161172027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53346.

The product of its (nonzero) digits is 70560, while the sum is 40.

The spelling of 265161172027 in words is "two hundred sixty-five billion, one hundred sixty-one million, one hundred seventy-two thousand, twenty-seven".