11641056538571 has 2 divisors, whose sum is σ = 11641056538572. Its totient is φ = 11641056538570.

The previous prime is 11641056538513. The next prime is 11641056538583. The reversal of 11641056538571 is 17583565014611.

11641056538571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11641056538571 is a prime.

It is not a weakly prime, because it can be changed into another prime (11641056538591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5820528269285 + 5820528269286.

It is an arithmetic number, because the mean of its divisors is an integer number (5820528269286).

Almost surely, 2^{11641056538571} is an apocalyptic number.

11641056538571 is a deficient number, since it is larger than the sum of its proper divisors (1).

11641056538571 is an equidigital number, since it uses as much as digits as its factorization.

11641056538571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024000, while the sum is 53.

The spelling of 11641056538571 in words is "eleven trillion, six hundred forty-one billion, fifty-six million, five hundred thirty-eight thousand, five hundred seventy-one".