67808857166 has 32 divisors (see below), whose sum is σ = 106262573760. Its totient is φ = 32411764224.

The previous prime is 67808857141. The next prime is 67808857183. The reversal of 67808857166 is 66175880876.

It is a super-2 number, since 2×67808857166² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 67808857099 and 67808857108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6962036 + ... + 6971768.

It is an arithmetic number, because the mean of its divisors is an integer number (3320705430).

Almost surely, 2^67808857166 is an apocalyptic number.

67808857166 is a deficient number, since it is larger than the sum of its proper divisors (38453716594).

67808857166 is a wasteful number, since it uses less digits than its factorization.

67808857166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10940.

The product of its (nonzero) digits is 27095040, while the sum is 62.

The spelling of 67808857166 in words is "sixty-seven billion, eight hundred eight million, eight hundred fifty-seven thousand, one hundred sixty-six".