11581580271159 has 6 divisors (see below), whose sum is σ = 16728949280576. Its totient is φ = 7721053514100.

The previous prime is 11581580271113. The next prime is 11581580271179. The reversal of 11581580271159 is 95117208518511.

11581580271159 is a `hidden beast` number, since 1 + 1 + 5 + 8 + 1 + 580 + 2 + 7 + 1 + 1 + 59 = 666.

It is not a de Polignac number, because 11581580271159 - 2²¹ = 11581578174007 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 (11581580271109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 643421126167 + ... + 643421126184.

Almost surely, 2^{11581580271159} is an apocalyptic number.

11581580271159 is a deficient number, since it is larger than the sum of its proper divisors (5147369009417).

11581580271159 is a wasteful number, since it uses less digits than its factorization.

11581580271159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286842252357 (or 1286842252354 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 54.

The spelling of 11581580271159 in words is "eleven trillion, five hundred eighty-one billion, five hundred eighty million, two hundred seventy-one thousand, one hundred fifty-nine".