11140566566 has 4 divisors (see below), whose sum is σ = 16710849852. Its totient is φ = 5570283282.

The previous prime is 11140566553. The next prime is 11140566581. The reversal of 11140566566 is 66566504111.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×11140566566² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2785141640 + ... + 2785141643.

It is an arithmetic number, because the mean of its divisors is an integer number (4177712463).

Almost surely, 2^11140566566 is an apocalyptic number.

11140566566 is a deficient number, since it is larger than the sum of its proper divisors (5570283286).

11140566566 is an equidigital number, since it uses as much as digits as its factorization.

11140566566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5570283285.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 11140566566 in words is "eleven billion, one hundred forty million, five hundred sixty-six thousand, five hundred sixty-six".