165632430 has 32 divisors (see below), whose sum is σ = 414802944. Its totient is φ = 42248096.

The previous prime is 165632429. The next prime is 165632491. The reversal of 165632430 is 34236561.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119334 + ... + 120713.

It is an arithmetic number, because the mean of its divisors is an integer number (12962592).

Almost surely, 2^165632430 is an apocalyptic number.

165632430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165632430 is an abundant number, since it is smaller than the sum of its proper divisors (249170514).

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

165632430 is a wasteful number, since it uses less digits than its factorization.

165632430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240080.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 165632430 is about 12869.8263391547. The cubic root of 165632430 is about 549.1805206598.

Adding to 165632430 its reverse (34236561), we get a palindrome (199868991).

The spelling of 165632430 in words is "one hundred sixty-five million, six hundred thirty-two thousand, four hundred thirty".