11855584910001 has 48 divisors (see below), whose sum is σ = 18961496281728. Its totient is φ = 6565614048000.

The previous prime is 11855584909991. The next prime is 11855584910003. The reversal of 11855584910001 is 10001948555811.

It is not a de Polignac number, because 11855584910001 - 2¹⁰ = 11855584908977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11855584910003) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5603430 + ... + 7423583.

It is an arithmetic number, because the mean of its divisors is an integer number (395031172536).

Almost surely, 2^{11855584910001} is an apocalyptic number.

It is an amenable number.

11855584910001 is a deficient number, since it is larger than the sum of its proper divisors (7105911371727).

11855584910001 is a wasteful number, since it uses less digits than its factorization.

11855584910001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13027222 (or 13027215 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 48.

The spelling of 11855584910001 in words is "eleven trillion, eight hundred fifty-five billion, five hundred eighty-four million, nine hundred ten thousand, one".