1316159999 has 16 divisors (see below), whose sum is σ = 1641822720. Its totient is φ = 1025019360.

The previous prime is 1316159969. The next prime is 1316160011. The reversal of 1316159999 is 9999516131.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1316159999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1316159999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316159909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189317 + ... + 196145.

It is an arithmetic number, because the mean of its divisors is an integer number (102613920).

Almost surely, 2^1316159999 is an apocalyptic number.

1316159999 is a deficient number, since it is larger than the sum of its proper divisors (325662721).

1316159999 is a wasteful number, since it uses less digits than its factorization.

1316159999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9350.

The product of its digits is 590490, while the sum is 53.

The square root of 1316159999 is about 36278.9194850122. The cubic root of 1316159999 is about 1095.8965569939.

The spelling of 1316159999 in words is "one billion, three hundred sixteen million, one hundred fifty-nine thousand, nine hundred ninety-nine".