164308161508 has 12 divisors (see below), whose sum is σ = 287545492780. Its totient is φ = 82152306432.

The previous prime is 164308161497. The next prime is 164308161527. The reversal of 164308161508 is 805161803461.

It can be written as a sum of positive squares in 2 ways, for example, as 64901638564 + 99406522944 = 254758^2 + 315288^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223041 + ... + 615112.

Almost surely, 2^164308161508 is an apocalyptic number.

It is an amenable number.

164308161508 is a deficient number, since it is larger than the sum of its proper divisors (123237331272).

164308161508 is a wasteful number, since it uses less digits than its factorization.

164308161508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887166 (or 887164 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

Adding to 164308161508 its reverse (805161803461), we get a palindrome (969469964969).

The spelling of 164308161508 in words is "one hundred sixty-four billion, three hundred eight million, one hundred sixty-one thousand, five hundred eight".