11581157120008 has 32 divisors (see below), whose sum is σ = 24926090241600. Its totient is φ = 4941488054592.

The previous prime is 11581157119999. The next prime is 11581157120009. The reversal of 11581157120008 is 80002175118511.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11581157120009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455507943 + ... + 455533366.

It is an arithmetic number, because the mean of its divisors is an integer number (778940320050).

Almost surely, 2^{11581157120008} is an apocalyptic number.

It is an amenable number.

11581157120008 is an abundant number, since it is smaller than the sum of its proper divisors (13344933121592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11581157120008 is a wasteful number, since it uses less digits than its factorization.

11581157120008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911041549 (or 911041545 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 40.

The spelling of 11581157120008 in words is "eleven trillion, five hundred eighty-one billion, one hundred fifty-seven million, one hundred twenty thousand, eight".