165497356 has 6 divisors (see below), whose sum is σ = 289620380. Its totient is φ = 82748676.

The previous prime is 165497333. The next prime is 165497357. The reversal of 165497356 is 653794561.

It is not an unprimeable number, because it can be changed into a prime (165497357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20687166 + ... + 20687173.

Almost surely, 2^165497356 is an apocalyptic number.

It is an amenable number.

165497356 is a deficient number, since it is larger than the sum of its proper divisors (124123024).

165497356 is a wasteful number, since it uses less digits than its factorization.

165497356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41374343 (or 41374341 counting only the distinct ones).

The product of its digits is 680400, while the sum is 46.

The square root of 165497356 is about 12864.5775678799. The cubic root of 165497356 is about 549.0311936560.

The spelling of 165497356 in words is "one hundred sixty-five million, four hundred ninety-seven thousand, three hundred fifty-six".