164065650 has 48 divisors (see below), whose sum is σ = 465011904. Its totient is φ = 37500480.

The previous prime is 164065637. The next prime is 164065651. The reversal of 164065650 is 56560461.

164065650 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (164065651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77077 + ... + 79176.

It is an arithmetic number, because the mean of its divisors is an integer number (9687748).

Almost surely, 2^164065650 is an apocalyptic number.

164065650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164065650 is an abundant number, since it is smaller than the sum of its proper divisors (300946254).

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

164065650 is a wasteful number, since it uses less digits than its factorization.

164065650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156275 (or 156270 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 164065650 is about 12808.8114202685. The cubic root of 164065650 is about 547.4433960789.

The spelling of 164065650 in words is "one hundred sixty-four million, sixty-five thousand, six hundred fifty".