68173048817966 has 32 divisors (see below), whose sum is σ = 106068132724320. Its totient is φ = 32835364848000.

The previous prime is 68173048817947. The next prime is 68173048817977. The reversal of 68173048817966 is 66971884037186.

It is a Harshad number since it is a multiple of its sum of digits (74).

It is a junction number, because it is equal to n+sod(n) for n = 68173048817893 and 68173048817902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168852776 + ... + 169256036.

It is an arithmetic number, because the mean of its divisors is an integer number (3314629147635).

Almost surely, 2^{68173048817966} is an apocalyptic number.

68173048817966 is a deficient number, since it is larger than the sum of its proper divisors (37895083906354).

68173048817966 is a wasteful number, since it uses less digits than its factorization.

68173048817966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426020.

The product of its (nonzero) digits is 585252864, while the sum is 74.

The spelling of 68173048817966 in words is "sixty-eight trillion, one hundred seventy-three billion, forty-eight million, eight hundred seventeen thousand, nine hundred sixty-six".