1150116656665 has 4 divisors (see below), whose sum is σ = 1380139988004. Its totient is φ = 920093325328.

The previous prime is 1150116656659. The next prime is 1150116656729. The reversal of 1150116656665 is 5666566110511.

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 553972069849 + 596144586816 = 744293^2 + 772104^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1150116656665 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 3 ways as a sum of consecutive naturals, for example, 115011665662 + ... + 115011665671.

It is an arithmetic number, because the mean of its divisors is an integer number (345034997001).

Almost surely, 2^{1150116656665} is an apocalyptic number.

It is an amenable number.

1150116656665 is a deficient number, since it is larger than the sum of its proper divisors (230023331339).

1150116656665 is an equidigital number, since it uses as much as digits as its factorization.

1150116656665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230023331338.

The product of its (nonzero) digits is 972000, while the sum is 49.

The spelling of 1150116656665 in words is "one trillion, one hundred fifty billion, one hundred sixteen million, six hundred fifty-six thousand, six hundred sixty-five".