67161217204 has 12 divisors (see below), whose sum is σ = 118610407300. Its totient is φ = 33272529408.

The previous prime is 67161217199. The next prime is 67161217217. The reversal of 67161217204 is 40271216176.

It can be written as a sum of positive squares in 2 ways, for example, as 19485368100 + 47675849104 = 139590^2 + 218348^2 .

It is a congruent number.

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, 77019309 + ... + 77020180.

Almost surely, 2^67161217204 is an apocalyptic number.

It is an amenable number.

67161217204 is a deficient number, since it is larger than the sum of its proper divisors (51449190096).

67161217204 is a wasteful number, since it uses less digits than its factorization.

67161217204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154039602 (or 154039600 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The spelling of 67161217204 in words is "sixty-seven billion, one hundred sixty-one million, two hundred seventeen thousand, two hundred four".