11601330442661 has 4 divisors (see below), whose sum is σ = 11603279269452. Its totient is φ = 11599381615872.

The previous prime is 11601330442643. The next prime is 11601330442693. The reversal of 11601330442661 is 16624403310611.

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 3400037278561 + 8201293164100 = 1843919^2 + 2863790^2 .

It is a cyclic number.

It is not a de Polignac number, because 11601330442661 - 2¹⁴ = 11601330426277 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 (11601330442631) 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, 974404466 + ... + 974416371.

It is an arithmetic number, because the mean of its divisors is an integer number (2900819817363).

Almost surely, 2^{11601330442661} is an apocalyptic number.

It is an amenable number.

11601330442661 is a deficient number, since it is larger than the sum of its proper divisors (1948826791).

11601330442661 is an equidigital number, since it uses as much as digits as its factorization.

11601330442661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1948826790.

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 11601330442661 in words is "eleven trillion, six hundred one billion, three hundred thirty million, four hundred forty-two thousand, six hundred sixty-one".