164243416 has 8 divisors (see below), whose sum is σ = 307956420. Its totient is φ = 82121704.

The previous prime is 164243411. The next prime is 164243423. The reversal of 164243416 is 614342461.

164243416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164243411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10265206 + ... + 10265221.

Almost surely, 2^164243416 is an apocalyptic number.

It is an amenable number.

164243416 is a deficient number, since it is larger than the sum of its proper divisors (143713004).

164243416 is a wasteful number, since it uses less digits than its factorization.

164243416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20530433 (or 20530429 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 164243416 is about 12815.7487490977. The cubic root of 164243416 is about 547.6410439841.

Adding to 164243416 its reverse (614342461), we get a palindrome (778585877).

The spelling of 164243416 in words is "one hundred sixty-four million, two hundred forty-three thousand, four hundred sixteen".