164648617 has 8 divisors (see below), whose sum is σ = 188384576. Its totient is φ = 140966352.

The previous prime is 164648611. The next prime is 164648629. The reversal of 164648617 is 716846461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164648617 is a prime.

It is a super-3 number, since 3×164648617³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164648611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6618 + ... + 19315.

It is an arithmetic number, because the mean of its divisors is an integer number (23548072).

Almost surely, 2^164648617 is an apocalyptic number.

It is an amenable number.

164648617 is a deficient number, since it is larger than the sum of its proper divisors (23735959).

164648617 is an equidigital number, since it uses as much as digits as its factorization.

164648617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26847.

The product of its digits is 193536, while the sum is 43.

The square root of 164648617 is about 12831.5477242615. The cubic root of 164648617 is about 548.0910315057.

The spelling of 164648617 in words is "one hundred sixty-four million, six hundred forty-eight thousand, six hundred seventeen".