11601432265 has 4 divisors (see below), whose sum is σ = 13921718724. Its totient is φ = 9281145808.

The previous prime is 11601432259. The next prime is 11601432287. The reversal of 11601432265 is 56223410611.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1259966016 + 10341466249 = 35496^2 + 101693^2 .

It is a cyclic number.

It is not a de Polignac number, because 11601432265 - 2³ = 11601432257 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1160143222 + ... + 1160143231.

It is an arithmetic number, because the mean of its divisors is an integer number (3480429681).

Almost surely, 2^11601432265 is an apocalyptic number.

It is an amenable number.

11601432265 is a deficient number, since it is larger than the sum of its proper divisors (2320286459).

11601432265 is an equidigital number, since it uses as much as digits as its factorization.

11601432265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2320286458.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 11601432265 its reverse (56223410611), we get a palindrome (67824842876).

The spelling of 11601432265 in words is "eleven billion, six hundred one million, four hundred thirty-two thousand, two hundred sixty-five".