164195569 has 8 divisors (see below), whose sum is σ = 165957120. Its totient is φ = 162443616.

The previous prime is 164195491. The next prime is 164195621. The reversal of 164195569 is 965591461.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164195569 is a prime.

It is a super-2 number, since 2×164195569² = 53920369758467522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164195069) 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, 35037 + ... + 39445.

It is an arithmetic number, because the mean of its divisors is an integer number (20744640).

Almost surely, 2^164195569 is an apocalyptic number.

It is an amenable number.

164195569 is a deficient number, since it is larger than the sum of its proper divisors (1761551).

164195569 is a wasteful number, since it uses less digits than its factorization.

164195569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4799.

The product of its digits is 291600, while the sum is 46.

The square root of 164195569 is about 12813.8818864542. The cubic root of 164195569 is about 547.5878596586.

The spelling of 164195569 in words is "one hundred sixty-four million, one hundred ninety-five thousand, five hundred sixty-nine".