164820204 has 48 divisors (see below), whose sum is σ = 437261440. Its totient is φ = 53660880.

The previous prime is 164820191. The next prime is 164820233. The reversal of 164820204 is 402028461.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13102 + ... + 22389.

Almost surely, 2^164820204 is an apocalyptic number.

It is an amenable number.

164820204 is an abundant number, since it is smaller than the sum of its proper divisors (272441236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164820204 is a wasteful number, since it uses less digits than its factorization.

164820204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35547 (or 35539 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 164820204 is about 12838.2321212852. The cubic root of 164820204 is about 548.2813613669.

Adding to 164820204 its reverse (402028461), we get a palindrome (566848665).

The spelling of 164820204 in words is "one hundred sixty-four million, eight hundred twenty thousand, two hundred four".