11576051605 has 4 divisors (see below), whose sum is σ = 13891261932. Its totient is φ = 9260841280.

The previous prime is 11576051603. The next prime is 11576051609. The reversal of 11576051605 is 50615067511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50615067511 = 18061 ⋅2802451.

It can be written as a sum of positive squares in 2 ways, for example, as 2420049636 + 9156001969 = 49194^2 + 95687^2 .

It is not a de Polignac number, because 11576051605 - 2¹ = 11576051603 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11576051603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1157605156 + ... + 1157605165.

It is an arithmetic number, because the mean of its divisors is an integer number (3472815483).

Almost surely, 2^11576051605 is an apocalyptic number.

It is an amenable number.

11576051605 is a deficient number, since it is larger than the sum of its proper divisors (2315210327).

11576051605 is an equidigital number, since it uses as much as digits as its factorization.

11576051605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2315210326.

The product of its (nonzero) digits is 31500, while the sum is 37.

The spelling of 11576051605 in words is "eleven billion, five hundred seventy-six million, fifty-one thousand, six hundred five".