164242516 has 6 divisors (see below), whose sum is σ = 287424410. Its totient is φ = 82121256.

The previous prime is 164242513. The next prime is 164242537. The reversal of 164242516 is 615242461.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 142898116 + 21344400 = 11954^2 + 4620^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164242513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20530311 + ... + 20530318.

Almost surely, 2^164242516 is an apocalyptic number.

It is an amenable number.

164242516 is a deficient number, since it is larger than the sum of its proper divisors (123181894).

164242516 is a wasteful number, since it uses less digits than its factorization.

164242516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41060633 (or 41060631 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 164242516 is about 12815.7136360017. The cubic root of 164242516 is about 547.6400436846.

Adding to 164242516 its reverse (615242461), we get a palindrome (779484977).

The spelling of 164242516 in words is "one hundred sixty-four million, two hundred forty-two thousand, five hundred sixteen".