164766225 has 24 divisors (see below), whose sum is σ = 293370112. Its totient is φ = 81115200.

The previous prime is 164766179. The next prime is 164766247. The reversal of 164766225 is 522667461.

It is not a de Polignac number, because 164766225 - 2⁷ = 164766097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83521 + ... + 85470.

Almost surely, 2^164766225 is an apocalyptic number.

164766225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

164766225 is a deficient number, since it is larger than the sum of its proper divisors (128603887).

164766225 is a wasteful number, since it uses less digits than its factorization.

164766225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169017 (or 169012 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 164766225 is about 12836.1296736984. The cubic root of 164766225 is about 548.2215003580.

The spelling of 164766225 in words is "one hundred sixty-four million, seven hundred sixty-six thousand, two hundred twenty-five".