1126266566 has 4 divisors (see below), whose sum is σ = 1689399852. Its totient is φ = 563133282.

The previous prime is 1126266563. The next prime is 1126266619. The reversal of 1126266566 is 6656626211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6656626211 = 18749 ⋅355039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1126266563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281566640 + ... + 281566643.

It is an arithmetic number, because the mean of its divisors is an integer number (422349963).

Almost surely, 2^1126266566 is an apocalyptic number.

1126266566 is a deficient number, since it is larger than the sum of its proper divisors (563133286).

1126266566 is an equidigital number, since it uses as much as digits as its factorization.

1126266566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563133285.

The product of its digits is 155520, while the sum is 41.

The square root of 1126266566 is about 33559.8952024585. The cubic root of 1126266566 is about 1040.4320708400.

The spelling of 1126266566 in words is "one billion, one hundred twenty-six million, two hundred sixty-six thousand, five hundred sixty-six".