164065270 has 32 divisors (see below), whose sum is σ = 302369760. Its totient is φ = 64078080.

The previous prime is 164065259. The next prime is 164065271. The reversal of 164065270 is 72560461.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164065271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72760 + ... + 74980.

It is an arithmetic number, because the mean of its divisors is an integer number (9449055).

Almost surely, 2^164065270 is an apocalyptic number.

164065270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164065270 is a deficient number, since it is larger than the sum of its proper divisors (138304490).

164065270 is a wasteful number, since it uses less digits than its factorization.

164065270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2400.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 164065270 is about 12808.7965867212. The cubic root of 164065270 is about 547.4429734256.

The spelling of 164065270 in words is "one hundred sixty-four million, sixty-five thousand, two hundred seventy".