11143066605 has 16 divisors (see below), whose sum is σ = 19449716544. Its totient is φ = 5402698880.

The previous prime is 11143066601. The next prime is 11143066607. The reversal of 11143066605 is 50666034111.

It is not a de Polignac number, because 11143066605 - 2² = 11143066601 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11143066601) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 33766704 + ... + 33767033.

It is an arithmetic number, because the mean of its divisors is an integer number (1215607284).

Almost surely, 2^11143066605 is an apocalyptic number.

11143066605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11143066605 is a deficient number, since it is larger than the sum of its proper divisors (8306649939).

11143066605 is a wasteful number, since it uses less digits than its factorization.

11143066605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67533756.

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 11143066605 in words is "eleven billion, one hundred forty-three million, sixty-six thousand, six hundred five".