165604495 has 8 divisors (see below), whose sum is σ = 227114784. Its totient is φ = 113557344.

The previous prime is 165604493. The next prime is 165604499. The reversal of 165604495 is 594406561.

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 not a de Polignac number, because 165604495 - 2¹ = 165604493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165604493) 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, 2365744 + ... + 2365813.

It is an arithmetic number, because the mean of its divisors is an integer number (28389348).

Almost surely, 2^165604495 is an apocalyptic number.

165604495 is a deficient number, since it is larger than the sum of its proper divisors (61510289).

165604495 is an equidigital number, since it uses as much as digits as its factorization.

165604495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4731569.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 165604495 is about 12868.7410029109. The cubic root of 165604495 is about 549.1496446202.

The spelling of 165604495 in words is "one hundred sixty-five million, six hundred four thousand, four hundred ninety-five".