1166229646705 has 8 divisors (see below), whose sum is σ = 1418646474792. Its totient is φ = 920203118208.

The previous prime is 1166229646669. The next prime is 1166229646727. The reversal of 1166229646705 is 5076469226611.

It can be written as a sum of positive squares in 4 ways, for example, as 35265459681 + 1130964187024 = 187791^2 + 1063468^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1166229646705 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1597574494 + ... + 1597575223.

It is an arithmetic number, because the mean of its divisors is an integer number (177330809349).

Almost surely, 2^{1166229646705} is an apocalyptic number.

It is an amenable number.

1166229646705 is a deficient number, since it is larger than the sum of its proper divisors (252416828087).

1166229646705 is an equidigital number, since it uses as much as digits as its factorization.

1166229646705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3195149795.

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 1166229646705 in words is "one trillion, one hundred sixty-six billion, two hundred twenty-nine million, six hundred forty-six thousand, seven hundred five".