11501660116 has 24 divisors (see below), whose sum is σ = 20275847424. Its totient is φ = 5708646720.

The previous prime is 11501660111. The next prime is 11501660119. The reversal of 11501660116 is 61106610511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11501660111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552456 + ... + 572896.

It is an arithmetic number, because the mean of its divisors is an integer number (844826976).

Almost surely, 2^11501660116 is an apocalyptic number.

It is an amenable number.

11501660116 is a deficient number, since it is larger than the sum of its proper divisors (8774187308).

11501660116 is a wasteful number, since it uses less digits than its factorization.

11501660116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21471 (or 21469 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 28.

The spelling of 11501660116 in words is "eleven billion, five hundred one million, six hundred sixty thousand, one hundred sixteen".