1126655665 has 8 divisors (see below), whose sum is σ = 1374150888. Its totient is φ = 886548480.

The previous prime is 1126655653. The next prime is 1126655683. The reversal of 1126655665 is 5665566211.

It can be written as a sum of positive squares in 4 ways, for example, as 113569 + 1126542096 = 337^2 + 33564^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1126655665 - 2¹⁵ = 1126622897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1846672 + ... + 1847281.

It is an arithmetic number, because the mean of its divisors is an integer number (171768861).

Almost surely, 2^1126655665 is an apocalyptic number.

It is an amenable number.

1126655665 is a deficient number, since it is larger than the sum of its proper divisors (247495223).

1126655665 is an equidigital number, since it uses as much as digits as its factorization.

1126655665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3694019.

The product of its digits is 324000, while the sum is 43.

The square root of 1126655665 is about 33565.6917849163. The cubic root of 1126655665 is about 1040.5518721018.

The spelling of 1126655665 in words is "one billion, one hundred twenty-six million, six hundred fifty-five thousand, six hundred sixty-five".