164356424 has 8 divisors (see below), whose sum is σ = 308168310. Its totient is φ = 82178208.

The previous prime is 164356421. The next prime is 164356453. The reversal of 164356424 is 424653461.

It can be written as a sum of positive squares in only one way, i.e., 157502500 + 6853924 = 12550^2 + 2618^2 .

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

It is a super-2 number, since 2×164356424² = 54026068220135552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (164356421) 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 as a sum of consecutive naturals, namely, 10272269 + ... + 10272284.

Almost surely, 2^164356424 is an apocalyptic number.

It is an amenable number.

164356424 is a deficient number, since it is larger than the sum of its proper divisors (143811886).

164356424 is a wasteful number, since it uses less digits than its factorization.

164356424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20544559 (or 20544555 counting only the distinct ones).

The product of its digits is 69120, while the sum is 35.

The square root of 164356424 is about 12820.1569413171. The cubic root of 164356424 is about 547.7666170147.

The spelling of 164356424 in words is "one hundred sixty-four million, three hundred fifty-six thousand, four hundred twenty-four".