164870766209 has 8 divisors (see below), whose sum is σ = 172114803072. Its totient is φ = 157633041280.

The previous prime is 164870766197. The next prime is 164870766217. The reversal of 164870766209 is 902667078461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164870766209 - 2¹² = 164870762113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164870766259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1524557 + ... + 1629114.

It is an arithmetic number, because the mean of its divisors is an integer number (21514350384).

Almost surely, 2^164870766209 is an apocalyptic number.

It is an amenable number.

164870766209 is a deficient number, since it is larger than the sum of its proper divisors (7244036863).

164870766209 is a wasteful number, since it uses less digits than its factorization.

164870766209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3155967.

The product of its (nonzero) digits is 6096384, while the sum is 56.

The spelling of 164870766209 in words is "one hundred sixty-four billion, eight hundred seventy million, seven hundred sixty-six thousand, two hundred nine".