1150205050817 has 4 divisors (see below), whose sum is σ = 1150945686660. Its totient is φ = 1149464414976.

The previous prime is 1150205050811. The next prime is 1150205050831. The reversal of 1150205050817 is 7180505020511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 161564606401 + 988640444416 = 401951^2 + 994304^2 .

It is a cyclic number.

It is not a de Polignac number, because 1150205050817 - 2⁴ = 1150205050801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1150205050811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370315592 + ... + 370318697.

It is an arithmetic number, because the mean of its divisors is an integer number (287736421665).

Almost surely, 2^{1150205050817} is an apocalyptic number.

It is an amenable number.

1150205050817 is a deficient number, since it is larger than the sum of its proper divisors (740635843).

1150205050817 is an equidigital number, since it uses as much as digits as its factorization.

1150205050817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740635842.

The product of its (nonzero) digits is 14000, while the sum is 35.

The spelling of 1150205050817 in words is "one trillion, one hundred fifty billion, two hundred five million, fifty thousand, eight hundred seventeen".