1316656567 has 4 divisors (see below), whose sum is σ = 1338972840. Its totient is φ = 1294340296.

The previous prime is 1316656559. The next prime is 1316656571. The reversal of 1316656567 is 7656566131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7656566131 = 17 ⋅450386243.

It is a cyclic number.

It is not a de Polignac number, because 1316656567 - 2³ = 1316656559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316656267) by changing a digit.

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, 11158048 + ... + 11158165.

It is an arithmetic number, because the mean of its divisors is an integer number (334743210).

Almost surely, 2^1316656567 is an apocalyptic number.

1316656567 is a deficient number, since it is larger than the sum of its proper divisors (22316273).

1316656567 is an equidigital number, since it uses as much as digits as its factorization.

1316656567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22316272.

The product of its digits is 680400, while the sum is 46.

The square root of 1316656567 is about 36285.7625936124. The cubic root of 1316656567 is about 1096.0343616018.

The spelling of 1316656567 in words is "one billion, three hundred sixteen million, six hundred fifty-six thousand, five hundred sixty-seven".