68067216000001 has 16 divisors (see below), whose sum is σ = 72359451487440. Its totient is φ = 63807505090560.

The previous prime is 68067215999977. The next prime is 68067216000079. The reversal of 68067216000001 is 10000061276086.

It can be written as a sum of positive squares in 8 ways, for example, as 36856446044401 + 31210769955600 = 6070951^2 + 5586660^2 .

It is a cyclic number.

It is not a de Polignac number, because 68067216000001 - 2⁷ = 68067215999873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68067216000601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3291246 + ... + 12122983.

It is an arithmetic number, because the mean of its divisors is an integer number (4522465717965).

Almost surely, 2^{68067216000001} is an apocalyptic number.

It is an amenable number.

68067216000001 is a deficient number, since it is larger than the sum of its proper divisors (4292235487439).

68067216000001 is a wasteful number, since it uses less digits than its factorization.

68067216000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15415284.

The product of its (nonzero) digits is 24192, while the sum is 37.

Adding to 68067216000001 its reverse (10000061276086), we get a palindrome (78067277276087).

The spelling of 68067216000001 in words is "sixty-eight trillion, sixty-seven billion, two hundred sixteen million, one", and thus it is an aban number.