11505015066 has 8 divisors (see below), whose sum is σ = 23010030144. Its totient is φ = 3835005020.

The previous prime is 11505015031. The next prime is 11505015077. The reversal of 11505015066 is 66051050511.

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

11505015066 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 958751250 + ... + 958751261.

It is an arithmetic number, because the mean of its divisors is an integer number (2876253768).

Almost surely, 2^11505015066 is an apocalyptic number.

11505015066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11505015066 is a wasteful number, since it uses less digits than its factorization.

11505015066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1917502516.

The product of its (nonzero) digits is 4500, while the sum is 30.

Adding to 11505015066 its reverse (66051050511), we get a palindrome (77556065577).

The spelling of 11505015066 in words is "eleven billion, five hundred five million, fifteen thousand, sixty-six".