11155005516 has 24 divisors (see below), whose sum is σ = 26271604800. Its totient is φ = 3683583952.

The previous prime is 11155005493. The next prime is 11155005517. The reversal of 11155005516 is 61550055111.

It is not an unprimeable number, because it can be changed into a prime (11155005517) 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, 4342566 + ... + 4345133.

It is an arithmetic number, because the mean of its divisors is an integer number (1094650200).

Almost surely, 2^11155005516 is an apocalyptic number.

It is an amenable number.

11155005516 is an abundant number, since it is smaller than the sum of its proper divisors (15116599284).

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

11155005516 is a wasteful number, since it uses less digits than its factorization.

11155005516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8687813 (or 8687811 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 30.

The spelling of 11155005516 in words is "eleven billion, one hundred fifty-five million, five thousand, five hundred sixteen".