11061644566 has 16 divisors (see below), whose sum is σ = 19072435104. Its totient is φ = 4713300864.

The previous prime is 11061644557. The next prime is 11061644567. The reversal of 11061644566 is 66544616011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11061644567) 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, 2281155 + ... + 2285998.

It is an arithmetic number, because the mean of its divisors is an integer number (1192027194).

Almost surely, 2^11061644566 is an apocalyptic number.

11061644566 is a deficient number, since it is larger than the sum of its proper divisors (8010790538).

11061644566 is a wasteful number, since it uses less digits than its factorization.

11061644566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4567335.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 11061644566 in words is "eleven billion, sixty-one million, six hundred forty-four thousand, five hundred sixty-six".