164205612 has 18 divisors (see below), whose sum is σ = 415075388. Its totient is φ = 54735192.

The previous prime is 164205583. The next prime is 164205617. The reversal of 164205612 is 216502461.

164205612 is a `hidden beast` number, since 1 + 6 + 42 + 0 + 5 + 612 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (164205617) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2280598 + ... + 2280669.

Almost surely, 2^164205612 is an apocalyptic number.

164205612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

164205612 is an abundant number, since it is smaller than the sum of its proper divisors (250869776).

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

164205612 is a wasteful number, since it uses less digits than its factorization.

164205612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4561277 (or 4561272 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 164205612 is about 12814.2737601473. The cubic root of 164205612 is about 547.5990238103.

The spelling of 164205612 in words is "one hundred sixty-four million, two hundred five thousand, six hundred twelve".