1112156566 has 4 divisors (see below), whose sum is σ = 1668234852. Its totient is φ = 556078282.

The previous prime is 1112156561. The next prime is 1112156581. The reversal of 1112156566 is 6656512111.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112156561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278039140 + ... + 278039143.

It is an arithmetic number, because the mean of its divisors is an integer number (417058713).

Almost surely, 2^1112156566 is an apocalyptic number.

1112156566 is a deficient number, since it is larger than the sum of its proper divisors (556078286).

1112156566 is an equidigital number, since it uses as much as digits as its factorization.

1112156566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556078285.

The product of its digits is 10800, while the sum is 34.

The square root of 1112156566 is about 33349.0114696073. The cubic root of 1112156566 is about 1036.0689139620.

Adding to 1112156566 its reverse (6656512111), we get a palindrome (7768668677).

The spelling of 1112156566 in words is "one billion, one hundred twelve million, one hundred fifty-six thousand, five hundred sixty-six".