1318170700720 has 80 divisors (see below), whose sum is σ = 3094030174752. Its totient is φ = 522236825600.

The previous prime is 1318170700603. The next prime is 1318170700727. The reversal of 1318170700720 is 270070718131.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 1318170700720.

It is not an unprimeable number, because it can be changed into a prime (1318170700727) by changing a digit.

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, 13066794 + ... + 13167286.

Almost surely, 2^{1318170700720} is an apocalyptic number.

1318170700720 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 1318170700720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1547015087376).

1318170700720 is an abundant number, since it is smaller than the sum of its proper divisors (1775859474032).

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

1318170700720 is a wasteful number, since it uses less digits than its factorization.

1318170700720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102070 (or 102064 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 37.

The spelling of 1318170700720 in words is "one trillion, three hundred eighteen billion, one hundred seventy million, seven hundred thousand, seven hundred twenty".