68006422116646 has 128 divisors (see below), whose sum is σ = 116509510301184. Its totient is φ = 29557326643200.

The previous prime is 68006422116643. The next prime is 68006422116653. The reversal of 68006422116646 is 64661122460086.

It is a junction number, because it is equal to n+sod(n) for n = 68006422116593 and 68006422116602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68006422116643) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3913579510 + ... + 3913596886.

It is an arithmetic number, because the mean of its divisors is an integer number (910230549228).

Almost surely, 2^{68006422116646} is an apocalyptic number.

68006422116646 is a deficient number, since it is larger than the sum of its proper divisors (48503088184538).

68006422116646 is a wasteful number, since it uses less digits than its factorization.

68006422116646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18434.

The product of its (nonzero) digits is 3981312, while the sum is 52.

The spelling of 68006422116646 in words is "sixty-eight trillion, six billion, four hundred twenty-two million, one hundred sixteen thousand, six hundred forty-six".