11581580271158 has 8 divisors (see below), whose sum is σ = 17741995309152. Its totient is φ = 5667581834776.

The previous prime is 11581580271113. The next prime is 11581580271179. The reversal of 11581580271158 is 85117208518511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61604150285 + ... + 61604150472.

It is an arithmetic number, because the mean of its divisors is an integer number (2217749413644).

Almost surely, 2^{11581580271158} is an apocalyptic number.

11581580271158 is a deficient number, since it is larger than the sum of its proper divisors (6160415037994).

11581580271158 is a wasteful number, since it uses less digits than its factorization.

11581580271158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123208300806.

The product of its (nonzero) digits is 896000, while the sum is 53.

Adding to 11581580271158 its reverse (85117208518511), we get a palindrome (96698788789669).

The spelling of 11581580271158 in words is "eleven trillion, five hundred eighty-one billion, five hundred eighty million, two hundred seventy-one thousand, one hundred fifty-eight".