165635562 has 8 divisors (see below), whose sum is σ = 331271136. Its totient is φ = 55211852.

The previous prime is 165635549. The next prime is 165635599. The reversal of 165635562 is 265536561.

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

165635562 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 165635562.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13802958 + ... + 13802969.

It is an arithmetic number, because the mean of its divisors is an integer number (41408892).

Almost surely, 2^165635562 is an apocalyptic number.

165635562 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165635562 is a wasteful number, since it uses less digits than its factorization.

165635562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27605932.

The product of its digits is 162000, while the sum is 39.

The square root of 165635562 is about 12869.9480185430. The cubic root of 165635562 is about 549.1839821851.

Subtracting 165635562 from its reverse (265536561), we obtain a palindrome (99900999).

The spelling of 165635562 in words is "one hundred sixty-five million, six hundred thirty-five thousand, five hundred sixty-two".