265132664641 has 24 divisors (see below), whose sum is σ = 297006748584. Its totient is φ = 235106426880.

The previous prime is 265132664623. The next prime is 265132664653. The reversal of 265132664641 is 146466231562.

It can be written as a sum of positive squares in 4 ways, for example, as 109045248400 + 156087416241 = 330220^2 + 395079^2 .

It is not a de Polignac number, because 265132664641 - 2⁵ = 265132664609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 265132664591 and 265132664600.

It is not an unprimeable number, because it can be changed into a prime (265132665641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2957761 + ... + 3046081.

It is an arithmetic number, because the mean of its divisors is an integer number (12375281191).

Almost surely, 2^265132664641 is an apocalyptic number.

It is an amenable number.

265132664641 is a deficient number, since it is larger than the sum of its proper divisors (31874083943).

265132664641 is an equidigital number, since it uses as much as digits as its factorization.

265132664641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88529 (or 88450 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 46.

The spelling of 265132664641 in words is "two hundred sixty-five billion, one hundred thirty-two million, six hundred sixty-four thousand, six hundred forty-one".