164932079185 has 8 divisors (see below), whose sum is σ = 198351579816. Its totient is φ = 131656940160.

The previous prime is 164932079107. The next prime is 164932079189. The reversal of 164932079185 is 581970239461.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 91838090304 + 73093988881 = 303048^2 + 270359^2 .

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

It is not a de Polignac number, because 164932079185 - 2³¹ = 162784595537 is a prime.

It is a super-2 number, since 2×164932079185² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164932079189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36087886 + ... + 36092455.

It is an arithmetic number, because the mean of its divisors is an integer number (24793947477).

It is a 2-persistent number, because it is pandigital, and so is 2⋅164932079185 = 329864158370, but 3⋅164932079185 = 494796237555 is not.

Almost surely, 2^164932079185 is an apocalyptic number.

It is an amenable number.

164932079185 is a deficient number, since it is larger than the sum of its proper divisors (33419500631).

164932079185 is an equidigital number, since it uses as much as digits as its factorization.

164932079185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72180803.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 164932079185 in words is "one hundred sixty-four billion, nine hundred thirty-two million, seventy-nine thousand, one hundred eighty-five".