1316115966 has 32 divisors (see below), whose sum is σ = 2874485376. Its totient is φ = 398412000.

The previous prime is 1316115923. The next prime is 1316115971. The reversal of 1316115966 is 6695116131.

It is a super-2 number, since 2×1316115966² = 3464322471920226312, which contains 22 as substring.

It is a Curzon number.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 57621 + ... + 77151.

It is an arithmetic number, because the mean of its divisors is an integer number (89827668).

Almost surely, 2^1316115966 is an apocalyptic number.

1316115966 is an abundant number, since it is smaller than the sum of its proper divisors (1558369410).

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

1316115966 is a wasteful number, since it uses less digits than its factorization.

1316115966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20568.

The product of its digits is 29160, while the sum is 39.

The square root of 1316115966 is about 36278.3126123584. The cubic root of 1316115966 is about 1095.8843355438.

The spelling of 1316115966 in words is "one billion, three hundred sixteen million, one hundred fifteen thousand, nine hundred sixty-six".