11554767071671 has 4 divisors (see below), whose sum is σ = 11744189482744. Its totient is φ = 11365344660600.

The previous prime is 11554767071623. The next prime is 11554767071681. The reversal of 11554767071671 is 17617076745511.

It is a happy number.

11554767071671 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 is a cyclic number.

It is not a de Polignac number, because 11554767071671 - 2¹¹ = 11554767069623 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 (11554767071681) 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, 94711205445 + ... + 94711205566.

It is an arithmetic number, because the mean of its divisors is an integer number (2936047370686).

Almost surely, 2^{11554767071671} is an apocalyptic number.

11554767071671 is a deficient number, since it is larger than the sum of its proper divisors (189422411073).

11554767071671 is an equidigital number, since it uses as much as digits as its factorization.

11554767071671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189422411072.

The product of its (nonzero) digits is 8643600, while the sum is 58.

The spelling of 11554767071671 in words is "eleven trillion, five hundred fifty-four billion, seven hundred sixty-seven million, seventy-one thousand, six hundred seventy-one".