11585305065 has 8 divisors (see below), whose sum is σ = 18536488128. Its totient is φ = 6178829360.

The previous prime is 11585305051. The next prime is 11585305073. The reversal of 11585305065 is 56050358511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11585305065 - 2⁶ = 11585305001 is a prime.

It is a super-2 number, since 2×11585305065² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386176821 + ... + 386176850.

It is an arithmetic number, because the mean of its divisors is an integer number (2317061016).

Almost surely, 2^11585305065 is an apocalyptic number.

11585305065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11585305065 is a deficient number, since it is larger than the sum of its proper divisors (6951183063).

11585305065 is an equidigital number, since it uses as much as digits as its factorization.

11585305065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772353679.

The product of its (nonzero) digits is 90000, while the sum is 39.

The spelling of 11585305065 in words is "eleven billion, five hundred eighty-five million, three hundred five thousand, sixty-five".