165604496 has 20 divisors (see below), whose sum is σ = 321821292. Its totient is φ = 82553856.

The previous prime is 165604493. The next prime is 165604499. The reversal of 165604496 is 694406561.

It is an interprime number because it is at equal distance from previous prime (165604493) and next prime (165604499).

It can be written as a sum of positive squares in 2 ways, for example, as 101284096 + 64320400 = 10064^2 + 8020^2 .

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 3 ways as a sum of consecutive naturals, for example, 9965 + ... + 20748.

Almost surely, 2^165604496 is an apocalyptic number.

165604496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

165604496 is a deficient number, since it is larger than the sum of its proper divisors (156216796).

165604496 is a wasteful number, since it uses less digits than its factorization.

165604496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31058 (or 31052 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 165604496 is about 12868.7410417647. The cubic root of 165604496 is about 549.1496457256.

The spelling of 165604496 in words is "one hundred sixty-five million, six hundred four thousand, four hundred ninety-six".