11156664243 has 8 divisors (see below), whose sum is σ = 14876614656. Its totient is φ = 7437245000.

The previous prime is 11156664217. The next prime is 11156664289. The reversal of 11156664243 is 34246665111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11156664243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11156666243) 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, 80883 + ... + 169868.

It is an arithmetic number, because the mean of its divisors is an integer number (1859576832).

Almost surely, 2^11156664243 is an apocalyptic number.

11156664243 is a deficient number, since it is larger than the sum of its proper divisors (3719950413).

11156664243 is a wasteful number, since it uses less digits than its factorization.

11156664243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265585.

The product of its digits is 103680, while the sum is 39.

The spelling of 11156664243 in words is "eleven billion, one hundred fifty-six million, six hundred sixty-four thousand, two hundred forty-three".