1317716233680 has 1280 divisors, whose sum is σ = 5547676925952. Its totient is φ = 250601472000.

The previous prime is 1317716233679. The next prime is 1317716233697. The reversal of 1317716233680 is 863326177131.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 1278094765 + ... + 1278095795.

Almost surely, 2^{1317716233680} is an apocalyptic number.

1317716233680 is a gapful number since it is divisible by the number (10) 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 1317716233680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2773838462976).

1317716233680 is an abundant number, since it is smaller than the sum of its proper divisors (4229960692272).

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

1317716233680 is a wasteful number, since it uses less digits than its factorization.

1317716233680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216 (or 1210 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 48.

The spelling of 1317716233680 in words is "one trillion, three hundred seventeen billion, seven hundred sixteen million, two hundred thirty-three thousand, six hundred eighty".