11605925761 has 4 divisors (see below), whose sum is σ = 11606160724. Its totient is φ = 11605690800.

The previous prime is 11605925717. The next prime is 11605925867. The reversal of 11605925761 is 16752950611.

11605925761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 8131530625 + 3474395136 = 90175^2 + 58944^2 .

It is a cyclic number.

It is not a de Polignac number, because 11605925761 - 2⁷ = 11605925633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11605625761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11550 + ... + 152791.

It is an arithmetic number, because the mean of its divisors is an integer number (2901540181).

Almost surely, 2^11605925761 is an apocalyptic number.

It is an amenable number.

11605925761 is a deficient number, since it is larger than the sum of its proper divisors (234963).

11605925761 is an equidigital number, since it uses as much as digits as its factorization.

11605925761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234962.

The product of its (nonzero) digits is 113400, while the sum is 43.

The spelling of 11605925761 in words is "eleven billion, six hundred five million, nine hundred twenty-five thousand, seven hundred sixty-one".