67055680 has 28 divisors (see below), whose sum is σ = 159677100. Its totient is φ = 26822144.

The previous prime is 67055663. The next prime is 67055711. The reversal of 67055680 is 8655076.

67055680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 31629376 + 35426304 = 5624^2 + 5952^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104455 + ... + 105094.

Almost surely, 2^67055680 is an apocalyptic number.

It is an amenable number.

67055680 is an abundant number, since it is smaller than the sum of its proper divisors (92621420).

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

67055680 is a wasteful number, since it uses less digits than its factorization.

67055680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209566 (or 209556 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 67055680 is about 8188.7532628600. The cubic root of 67055680 is about 406.2672898361.

The spelling of 67055680 in words is "sixty-seven million, fifty-five thousand, six hundred eighty".