67641164 has 12 divisors (see below), whose sum is σ = 125335224. Its totient is φ = 31831104.

The previous prime is 67641151. The next prime is 67641173. The reversal of 67641164 is 46114676.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497294 + ... + 497429.

It is an arithmetic number, because the mean of its divisors is an integer number (10444602).

Almost surely, 2^67641164 is an apocalyptic number.

It is an amenable number.

67641164 is a deficient number, since it is larger than the sum of its proper divisors (57694060).

67641164 is a wasteful number, since it uses less digits than its factorization.

67641164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994744 (or 994742 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 67641164 is about 8224.4248431121. The cubic root of 67641164 is about 407.4462804467.

The spelling of 67641164 in words is "sixty-seven million, six hundred forty-one thousand, one hundred sixty-four".