1316663712 has 216 divisors, whose sum is σ = 4691268036. Its totient is φ = 347203584.

The previous prime is 1316663707. The next prime is 1316663723. The reversal of 1316663712 is 2173666131.

It can be written as a sum of positive squares in 2 ways, for example, as 1310729616 + 5934096 = 36204^2 + 2436^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 179868 + ... + 187044.

Almost surely, 2^1316663712 is an apocalyptic number.

1316663712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1316663712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2345634018).

1316663712 is an abundant number, since it is smaller than the sum of its proper divisors (3374604324).

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

1316663712 is a wasteful number, since it uses less digits than its factorization.

1316663712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7220 (or 7202 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 1316663712 is about 36285.8610480722. The cubic root of 1316663712 is about 1096.0363441870.

The spelling of 1316663712 in words is "one billion, three hundred sixteen million, six hundred sixty-three thousand, seven hundred twelve".