1320366065 has 8 divisors (see below), whose sum is σ = 1618151040. Its totient is φ = 1033818352.

The previous prime is 1320366017. The next prime is 1320366071. The reversal of 1320366065 is 5606630231.

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 1320366065 - 2¹⁸ = 1320103921 is a prime.

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, 2809055 + ... + 2809524.

It is an arithmetic number, because the mean of its divisors is an integer number (202268880).

Almost surely, 2^1320366065 is an apocalyptic number.

It is an amenable number.

1320366065 is a deficient number, since it is larger than the sum of its proper divisors (297784975).

1320366065 is an equidigital number, since it uses as much as digits as its factorization.

1320366065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5618631.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 1320366065 is about 36336.8417037034. The cubic root of 1320366065 is about 1097.0627049379.

Adding to 1320366065 its reverse (5606630231), we get a palindrome (6926996296).

The spelling of 1320366065 in words is "one billion, three hundred twenty million, three hundred sixty-six thousand, sixty-five".