67662668 has 6 divisors (see below), whose sum is σ = 118409676. Its totient is φ = 33831332.

The previous prime is 67662653. The next prime is 67662671. The reversal of 67662668 is 86626676.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8457830 + ... + 8457837.

It is an arithmetic number, because the mean of its divisors is an integer number (19734946).

Almost surely, 2^67662668 is an apocalyptic number.

It is an amenable number.

67662668 is a deficient number, since it is larger than the sum of its proper divisors (50747008).

67662668 is a wasteful number, since it uses less digits than its factorization.

67662668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16915671 (or 16915669 counting only the distinct ones).

The product of its digits is 870912, while the sum is 47.

The square root of 67662668 is about 8225.7320646858. The cubic root of 67662668 is about 407.4894533509.

The spelling of 67662668 in words is "sixty-seven million, six hundred sixty-two thousand, six hundred sixty-eight".