1166226611 has 16 divisors (see below), whose sum is σ = 1299211488. Its totient is φ = 1037952000.

The previous prime is 1166226559. The next prime is 1166226613.

1166226611 is nontrivially palindromic in base 10.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1166226611 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1166226613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104711 + ... + 115311.

It is an arithmetic number, because the mean of its divisors is an integer number (81200718).

Almost surely, 2^1166226611 is an apocalyptic number.

1166226611 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1166226611 is a deficient number, since it is larger than the sum of its proper divisors (132984877).

1166226611 is a wasteful number, since it uses less digits than its factorization.

1166226611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10822.

The product of its digits is 5184, while the sum is 32.

The square root of 1166226611 is about 34150.0601902837. The cubic root of 1166226611 is about 1052.5942234484.

The spelling of 1166226611 in words is "one billion, one hundred sixty-six million, two hundred twenty-six thousand, six hundred eleven".