1318343694066 has 384 divisors, whose sum is σ = 3620082585600. Its totient is φ = 338418362880.

The previous prime is 1318343694023. The next prime is 1318343694067. The reversal of 1318343694066 is 6604963438131.

1318343694066 is a `hidden beast` number, since 1 + 3 + 183 + 4 + 369 + 40 + 66 = 666.

It is a super-2 number, since 2×1318343694066² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1318343694067) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 456646875 + ... + 456649761.

It is an arithmetic number, because the mean of its divisors is an integer number (9427298400).

Almost surely, 2^{1318343694066} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1318343694066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1810041292800).

1318343694066 is an abundant number, since it is smaller than the sum of its proper divisors (2301738891534).

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

1318343694066 is a wasteful number, since it uses less digits than its factorization.

1318343694066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3094 (or 3091 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 54.

The spelling of 1318343694066 in words is "one trillion, three hundred eighteen billion, three hundred forty-three million, six hundred ninety-four thousand, sixty-six".