165608497 has 8 divisors (see below), whose sum is σ = 167650560. Its totient is φ = 163578480.

The previous prime is 165608483. The next prime is 165608551. The reversal of 165608497 is 794806561.

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 165608497 - 2²⁷ = 31390769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165608297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26379 + ... + 32047.

It is an arithmetic number, because the mean of its divisors is an integer number (20956320).

Almost surely, 2^165608497 is an apocalyptic number.

It is an amenable number.

165608497 is a deficient number, since it is larger than the sum of its proper divisors (2042063).

165608497 is a wasteful number, since it uses less digits than its factorization.

165608497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6023.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 165608497 is about 12868.8964950379. The cubic root of 165608497 is about 549.1540681700.

The spelling of 165608497 in words is "one hundred sixty-five million, six hundred eight thousand, four hundred ninety-seven".