318129713616 has 320 divisors, whose sum is σ = 994139870976. Its totient is φ = 86361292800.

The previous prime is 318129713611. The next prime is 318129713651. The reversal of 318129713616 is 616317921813.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318129713611) 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, 116062006 + ... + 116064746.

Almost surely, 2^318129713616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 318129713616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (497069935488).

318129713616 is an abundant number, since it is smaller than the sum of its proper divisors (676010157360).

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

318129713616 is a wasteful number, since it uses less digits than its factorization.

318129713616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3270 (or 3264 counting only the distinct ones).

The product of its digits is 326592, while the sum is 48.

It can be divided in two parts, 3181297 and 13616, that added together give a palindrome (3194913).

The spelling of 318129713616 in words is "three hundred eighteen billion, one hundred twenty-nine million, seven hundred thirteen thousand, six hundred sixteen".