67601668 has 12 divisors (see below), whose sum is σ = 122382540. Its totient is φ = 32635232.

The previous prime is 67601663. The next prime is 67601671. The reversal of 67601668 is 86610676.

It can be written as a sum of positive squares in 2 ways, for example, as 29680704 + 37920964 = 5448^2 + 6158^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 67601668.

It is not an unprimeable number, because it can be changed into a prime (67601663) 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, 291271 + ... + 291502.

It is an arithmetic number, because the mean of its divisors is an integer number (10198545).

Almost surely, 2^67601668 is an apocalyptic number.

It is an amenable number.

67601668 is a deficient number, since it is larger than the sum of its proper divisors (54780872).

67601668 is a wasteful number, since it uses less digits than its factorization.

67601668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582806 (or 582804 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 67601668 is about 8222.0233519493. The cubic root of 67601668 is about 407.3669617275.

The spelling of 67601668 in words is "sixty-seven million, six hundred one thousand, six hundred sixty-eight".