11001665994 has 32 divisors (see below), whose sum is σ = 24010850304. Its totient is φ = 3332836080.

The previous prime is 11001665993. The next prime is 11001666077. The reversal of 11001665994 is 49956610011.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11001665993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213217 + ... + 259739.

It is an arithmetic number, because the mean of its divisors is an integer number (750339072).

Almost surely, 2^11001665994 is an apocalyptic number.

11001665994 is an abundant number, since it is smaller than the sum of its proper divisors (13009184310).

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

11001665994 is a wasteful number, since it uses less digits than its factorization.

11001665994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50122.

The product of its (nonzero) digits is 58320, while the sum is 42.

The spelling of 11001665994 in words is "eleven billion, one million, six hundred sixty-five thousand, nine hundred ninety-four".