67055768 has 16 divisors (see below), whose sum is σ = 135401280. Its totient is φ = 30948768.

The previous prime is 67055767. The next prime is 67055771. The reversal of 67055768 is 86755076.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67055761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322280 + ... + 322487.

It is an arithmetic number, because the mean of its divisors is an integer number (8462580).

Almost surely, 2^67055768 is an apocalyptic number.

It is an amenable number.

67055768 is an abundant number, since it is smaller than the sum of its proper divisors (68345512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67055768 is a wasteful number, since it uses less digits than its factorization.

67055768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644786 (or 644782 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 44.

The square root of 67055768 is about 8188.7586360815. The cubic root of 67055768 is about 406.2674675566.

The spelling of 67055768 in words is "sixty-seven million, fifty-five thousand, seven hundred sixty-eight".