164196018 has 64 divisors (see below), whose sum is σ = 423901440. Its totient is φ = 46137600.

The previous prime is 164195989. The next prime is 164196023. The reversal of 164196018 is 810691461.

It is a happy number.

164196018 is a `hidden beast` number, since 1 + 6 + 41 + 9 + 601 + 8 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19498 + ... + 26618.

It is an arithmetic number, because the mean of its divisors is an integer number (6623460).

Almost surely, 2^164196018 is an apocalyptic number.

164196018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 164196018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211950720).

164196018 is an abundant number, since it is smaller than the sum of its proper divisors (259705422).

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

164196018 is a wasteful number, since it uses less digits than its factorization.

164196018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7200 (or 7194 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 164196018 is about 12813.8994065039. The cubic root of 164196018 is about 547.5883587925.

The spelling of 164196018 in words is "one hundred sixty-four million, one hundred ninety-six thousand, eighteen".