68067215999999 has 16 divisors (see below), whose sum is σ = 71103541555200. Its totient is φ = 65037325826880.

The previous prime is 68067215999977. The next prime is 68067216000079. The reversal of 68067215999999 is 99999951276086.

It is not a de Polignac number, because 68067215999999 - 2²⁰ = 68067214951423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68067215999399) 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, 105200027 + ... + 105845075.

It is an arithmetic number, because the mean of its divisors is an integer number (4443971347200).

Almost surely, 2^{68067215999999} is an apocalyptic number.

68067215999999 is a deficient number, since it is larger than the sum of its proper divisors (3036325555201).

68067215999999 is a wasteful number, since it uses less digits than its factorization.

68067215999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650030.

The product of its (nonzero) digits is 10713850560, while the sum is 89.

The spelling of 68067215999999 in words is "sixty-eight trillion, sixty-seven billion, two hundred fifteen million, nine hundred ninety-nine thousand, nine hundred ninety-nine".