11519999966 has 8 divisors (see below), whose sum is σ = 17537910600. Its totient is φ = 5674029768.

The previous prime is 11519999941. The next prime is 11519999989. The reversal of 11519999966 is 66999991511.

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

It is a Curzon number.

It is a congruent 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, 42984941 + ... + 42985208.

It is an arithmetic number, because the mean of its divisors is an integer number (2192238825).

Almost surely, 2^11519999966 is an apocalyptic number.

11519999966 is a deficient number, since it is larger than the sum of its proper divisors (6017910634).

11519999966 is an equidigital number, since it uses as much as digits as its factorization.

11519999966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85970218.

The product of its digits is 10628820, while the sum is 65.

The spelling of 11519999966 in words is "eleven billion, five hundred nineteen million, nine hundred ninety-nine thousand, nine hundred sixty-six".