1169121101609 has 8 divisors (see below), whose sum is σ = 1172867321640. Its totient is φ = 1165379212800.

The previous prime is 1169121101539. The next prime is 1169121101657. The reversal of 1169121101609 is 9061011219611.

It can be written as a sum of positive squares in 4 ways, for example, as 573044458009 + 596076643600 = 756997^2 + 772060^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1169121101609 - 2⁸ = 1169121101353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1169121101669) 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, 541652 + ... + 1622229.

It is an arithmetic number, because the mean of its divisors is an integer number (146608415205).

Almost surely, 2^{1169121101609} is an apocalyptic number.

It is an amenable number.

1169121101609 is a deficient number, since it is larger than the sum of its proper divisors (3746220031).

1169121101609 is a wasteful number, since it uses less digits than its factorization.

1169121101609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165611.

The product of its (nonzero) digits is 5832, while the sum is 38.

The spelling of 1169121101609 in words is "one trillion, one hundred sixty-nine billion, one hundred twenty-one million, one hundred one thousand, six hundred nine".