165536530 has 8 divisors (see below), whose sum is σ = 297965772. Its totient is φ = 66214608.

The previous prime is 165536519. The next prime is 165536537. The reversal of 165536530 is 35635561.

It can be written as a sum of positive squares in 2 ways, for example, as 140825689 + 24710841 = 11867^2 + 4971^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (165536537) 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, 8276817 + ... + 8276836.

Almost surely, 2^165536530 is an apocalyptic number.

165536530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165536530 is a deficient number, since it is larger than the sum of its proper divisors (132429242).

165536530 is a wasteful number, since it uses less digits than its factorization.

165536530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16553660.

The product of its (nonzero) digits is 40500, while the sum is 34.

The square root of 165536530 is about 12866.1000307008. The cubic root of 165536530 is about 549.0745096576.

The spelling of 165536530 in words is "one hundred sixty-five million, five hundred thirty-six thousand, five hundred thirty".