1167105665 has 8 divisors (see below), whose sum is σ = 1527847488. Its totient is φ = 848804080.

The previous prime is 1167105661. The next prime is 1167105703. The reversal of 1167105665 is 5665017611.

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

It is not a de Polignac number, because 1167105665 - 2² = 1167105661 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1167105661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10609997 + ... + 10610106.

It is an arithmetic number, because the mean of its divisors is an integer number (190980936).

Almost surely, 2^1167105665 is an apocalyptic number.

It is an amenable number.

1167105665 is a deficient number, since it is larger than the sum of its proper divisors (360741823).

1167105665 is a wasteful number, since it uses less digits than its factorization.

1167105665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21220119.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 1167105665 is about 34162.9282263684. The cubic root of 1167105665 is about 1052.8586245433.

The spelling of 1167105665 in words is "one billion, one hundred sixty-seven million, one hundred five thousand, six hundred sixty-five".