164243790234 has 40 divisors (see below), whose sum is σ = 384028967520. Its totient is φ = 52367584104.

The previous prime is 164243790229. The next prime is 164243790253. The reversal of 164243790234 is 432097342461.

164243790234 is a `hidden beast` number, since 1 + 6 + 42 + 4 + 379 + 0 + 234 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 164243790234.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 22036504 + ... + 22043955.

It is an arithmetic number, because the mean of its divisors is an integer number (9600724188).

Almost surely, 2^164243790234 is an apocalyptic number.

164243790234 is an abundant number, since it is smaller than the sum of its proper divisors (219785177286).

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

164243790234 is a wasteful number, since it uses less digits than its factorization.

164243790234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44080496 (or 44080487 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The spelling of 164243790234 in words is "one hundred sixty-four billion, two hundred forty-three million, seven hundred ninety thousand, two hundred thirty-four".