164325645 has 64 divisors (see below), whose sum is σ = 320716800. Its totient is φ = 79168320.

The previous prime is 164325589. The next prime is 164325647. The reversal of 164325645 is 546523461.

164325645 is a `hidden beast` number, since 1 + 6 + 4 + 3 + 2 + 5 + 645 = 666.

164325645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 164325645 - 2⁷ = 164325517 is a prime.

It is a super-3 number, since 3×164325645³ (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164325647) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 354684 + ... + 355146.

It is an arithmetic number, because the mean of its divisors is an integer number (5011200).

Almost surely, 2^164325645 is an apocalyptic number.

164325645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

164325645 is a deficient number, since it is larger than the sum of its proper divisors (156391155).

164325645 is a wasteful number, since it uses less digits than its factorization.

164325645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727 (or 721 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 164325645 is about 12818.9564707897. The cubic root of 164325645 is about 547.7324214925.

The spelling of 164325645 in words is "one hundred sixty-four million, three hundred twenty-five thousand, six hundred forty-five".