165632497 has 8 divisors (see below), whose sum is σ = 170392320. Its totient is φ = 160907040.

The previous prime is 165632491. The next prime is 165632501. The reversal of 165632497 is 794236561.

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 165632497 - 2¹¹ = 165630449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165632491) 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, 1348 + ... + 18250.

It is an arithmetic number, because the mean of its divisors is an integer number (21299040).

Almost surely, 2^165632497 is an apocalyptic number.

It is an amenable number.

165632497 is a deficient number, since it is larger than the sum of its proper divisors (4759823).

165632497 is a wasteful number, since it uses less digits than its factorization.

165632497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17183.

The product of its digits is 272160, while the sum is 43.

The square root of 165632497 is about 12869.8289421422. The cubic root of 165632497 is about 549.1805947095.

The spelling of 165632497 in words is "one hundred sixty-five million, six hundred thirty-two thousand, four hundred ninety-seven".