67051648 has 32 divisors (see below), whose sum is σ = 133954560. Its totient is φ = 33431808.

The previous prime is 67051643. The next prime is 67051651. The reversal of 67051648 is 84615076.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (67051643) 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, 77265 + ... + 78127.

It is an arithmetic number, because the mean of its divisors is an integer number (4186080).

Almost surely, 2^67051648 is an apocalyptic number.

It is an amenable number.

67051648 is a deficient number, since it is larger than the sum of its proper divisors (66902912).

67051648 is an equidigital number, since it uses as much as digits as its factorization.

67051648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484 (or 1472 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 67051648 is about 8188.5070678360. The cubic root of 67051648 is about 406.2591468394.

The spelling of 67051648 in words is "sixty-seven million, fifty-one thousand, six hundred forty-eight".