164493165 has 16 divisors (see below), whose sum is σ = 277041600. Its totient is φ = 83112192.

The previous prime is 164493151. The next prime is 164493179. The reversal of 164493165 is 561394461.

It is an interprime number because it is at equal distance from previous prime (164493151) and next prime (164493179).

It is not a de Polignac number, because 164493165 - 2¹³ = 164484973 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288300 + ... + 288869.

It is an arithmetic number, because the mean of its divisors is an integer number (17315100).

Almost surely, 2^164493165 is an apocalyptic number.

164493165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

164493165 is a deficient number, since it is larger than the sum of its proper divisors (112548435).

164493165 is a wasteful number, since it uses less digits than its factorization.

164493165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577196.

The product of its digits is 77760, while the sum is 39.

The square root of 164493165 is about 12825.4888795710. The cubic root of 164493165 is about 547.9184849093.

The spelling of 164493165 in words is "one hundred sixty-four million, four hundred ninety-three thousand, one hundred sixty-five".