164339669 has 16 divisors (see below), whose sum is σ = 185203200. Its totient is φ = 144962928.

The previous prime is 164339641. The next prime is 164339687. The reversal of 164339669 is 966933461.

It is a de Polignac number, because none of the positive numbers 2^k-164339669 is a prime.

It is a super-2 number, since 2×164339669² = 54015053614059122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164339689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157652 + ... + 158690.

It is an arithmetic number, because the mean of its divisors is an integer number (11575200).

Almost surely, 2^164339669 is an apocalyptic number.

It is an amenable number.

164339669 is a deficient number, since it is larger than the sum of its proper divisors (20863531).

164339669 is an equidigital number, since it uses as much as digits as its factorization.

164339669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121 (or 1075 counting only the distinct ones).

The product of its digits is 629856, while the sum is 47.

The square root of 164339669 is about 12819.5034615230. The cubic root of 164339669 is about 547.7480027102.

The spelling of 164339669 in words is "one hundred sixty-four million, three hundred thirty-nine thousand, six hundred sixty-nine".