164670625 has 60 divisors (see below), whose sum is σ = 252856560. Its totient is φ = 106596000.

The previous prime is 164670601. The next prime is 164670641. The reversal of 164670625 is 526076461.

It is a happy number.

It is not a de Polignac number, because 164670625 - 2¹¹ = 164668577 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 581734 + ... + 582016.

It is an arithmetic number, because the mean of its divisors is an integer number (4214276).

Almost surely, 2^164670625 is an apocalyptic number.

It is an amenable number.

164670625 is a deficient number, since it is larger than the sum of its proper divisors (88185935).

164670625 is an equidigital number, since it uses as much as digits as its factorization.

164670625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 164670625 is about 12832.4052694731. The cubic root of 164670625 is about 548.1154508828.

The spelling of 164670625 in words is "one hundred sixty-four million, six hundred seventy thousand, six hundred twenty-five".