164425066325 has 24 divisors (see below), whose sum is σ = 232486635528. Its totient is φ = 114279137280.

The previous prime is 164425066319. The next prime is 164425066327. The reversal of 164425066325 is 523660524461.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 89081953156 + 75343113169 = 298466^2 + 274487^2 .

It is a de Polignac number, because none of the positive numbers 2^k-164425066325 is a prime.

It is a super-3 number, since 3×164425066325³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164425066327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14874572 + ... + 14885621.

It is an arithmetic number, because the mean of its divisors is an integer number (9686943147).

Almost surely, 2^164425066325 is an apocalyptic number.

It is an amenable number.

164425066325 is a deficient number, since it is larger than the sum of its proper divisors (68061569203).

164425066325 is a wasteful number, since it uses less digits than its factorization.

164425066325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29760233 (or 29760228 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 164425066325 in words is "one hundred sixty-four billion, four hundred twenty-five million, sixty-six thousand, three hundred twenty-five".