1316611065 has 64 divisors (see below), whose sum is σ = 2690537472. Its totient is φ = 533798400.

The previous prime is 1316611033. The next prime is 1316611069. The reversal of 1316611065 is 5601166131.

It is not a de Polignac number, because 1316611065 - 2⁵ = 1316611033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1316611069) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 33454 + ... + 61256.

It is an arithmetic number, because the mean of its divisors is an integer number (42039648).

Almost surely, 2^1316611065 is an apocalyptic number.

1316611065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1316611065 is an abundant number, since it is smaller than the sum of its proper divisors (1373926407).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1316611065 is a wasteful number, since it uses less digits than its factorization.

1316611065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27870.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 1316611065 is about 36285.1355929670. The cubic root of 1316611065 is about 1096.0217355987.

Adding to 1316611065 its reverse (5601166131), we get a palindrome (6917777196).

The spelling of 1316611065 in words is "one billion, three hundred sixteen million, six hundred eleven thousand, sixty-five".