11128215998 has 16 divisors (see below), whose sum is σ = 16819899264. Its totient is φ = 5521610880.

The previous prime is 11128215983. The next prime is 11128216007. The reversal of 11128215998 is 89951282111.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 1150643 + ... + 1160273.

It is an arithmetic number, because the mean of its divisors is an integer number (1051243704).

Almost surely, 2^11128215998 is an apocalyptic number.

11128215998 is a deficient number, since it is larger than the sum of its proper divisors (5691683266).

11128215998 is a wasteful number, since it uses less digits than its factorization.

11128215998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13987.

The product of its digits is 103680, while the sum is 47.

The spelling of 11128215998 in words is "eleven billion, one hundred twenty-eight million, two hundred fifteen thousand, nine hundred ninety-eight".