11600605505 has 4 divisors (see below), whose sum is σ = 13920726612. Its totient is φ = 9280484400.

The previous prime is 11600605501. The next prime is 11600605531. The reversal of 11600605505 is 50550600611.

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 8602933504 + 2997672001 = 92752^2 + 54751^2 .

It is not a de Polignac number, because 11600605505 - 2² = 11600605501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11600605501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1160060546 + ... + 1160060555.

It is an arithmetic number, because the mean of its divisors is an integer number (3480181653).

Almost surely, 2^11600605505 is an apocalyptic number.

It is an amenable number.

11600605505 is a deficient number, since it is larger than the sum of its proper divisors (2320121107).

11600605505 is an equidigital number, since it uses as much as digits as its factorization.

11600605505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2320121106.

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 11600605505 in words is "eleven billion, six hundred million, six hundred five thousand, five hundred five".