164956885 has 8 divisors (see below), whose sum is σ = 198075096. Its totient is φ = 131880960.

The previous prime is 164956877. The next prime is 164956889. The reversal of 164956885 is 588659461.

164956885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 34586161 + 130370724 = 5881^2 + 11418^2 .

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

It is not a de Polignac number, because 164956885 - 2³ = 164956877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164956889) 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, 1236 + ... + 18205.

It is an arithmetic number, because the mean of its divisors is an integer number (24759387).

Almost surely, 2^164956885 is an apocalyptic number.

It is an amenable number.

164956885 is a deficient number, since it is larger than the sum of its proper divisors (33118211).

164956885 is a wasteful number, since it uses less digits than its factorization.

164956885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21143.

The product of its digits is 2073600, while the sum is 52.

The square root of 164956885 is about 12843.5542199190. The cubic root of 164956885 is about 548.4328778625.

The spelling of 164956885 in words is "one hundred sixty-four million, nine hundred fifty-six thousand, eight hundred eighty-five".