11143340665 has 8 divisors (see below), whose sum is σ = 13372784640. Its totient is φ = 8914155312.

The previous prime is 11143340641. The next prime is 11143340701. The reversal of 11143340665 is 56604334111.

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

It is a cyclic number.

It is not a de Polignac number, because 11143340665 - 2¹⁷ = 11143209593 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11143340665.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47982 + ... + 156808.

It is an arithmetic number, because the mean of its divisors is an integer number (1671598080).

Almost surely, 2^11143340665 is an apocalyptic number.

It is an amenable number.

11143340665 is a deficient number, since it is larger than the sum of its proper divisors (2229443975).

11143340665 is a wasteful number, since it uses less digits than its factorization.

11143340665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129311.

The product of its (nonzero) digits is 25920, while the sum is 34.

Adding to 11143340665 its reverse (56604334111), we get a palindrome (67747674776).

The spelling of 11143340665 in words is "eleven billion, one hundred forty-three million, three hundred forty thousand, six hundred sixty-five".