1068316561512 has 160 divisors (see below), whose sum is σ = 3151718169600. Its totient is φ = 337153798656.

The previous prime is 1068316561463. The next prime is 1068316561537. The reversal of 1068316561512 is 2151656138601.

It is a happy number.

1068316561512 is a `hidden beast` number, since 1 + 0 + 6 + 8 + 3 + 16 + 5 + 615 + 12 = 666.

It is a super-2 number, since 2×1068316561512² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 20448768 + ... + 20500944.

It is an arithmetic number, because the mean of its divisors is an integer number (19698238560).

Almost surely, 2^{1068316561512} is an apocalyptic number.

1068316561512 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 1068316561512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1575859084800).

1068316561512 is an abundant number, since it is smaller than the sum of its proper divisors (2083401608088).

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

1068316561512 is a wasteful number, since it uses less digits than its factorization.

1068316561512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53877 (or 53864 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The spelling of 1068316561512 in words is "one trillion, sixty-eight billion, three hundred sixteen million, five hundred sixty-one thousand, five hundred twelve".