616032161 has 8 divisors (see below), whose sum is σ = 646051200. Its totient is φ = 586282752.

The previous prime is 616032143. The next prime is 616032191. The reversal of 616032161 is 161230616.

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 616032161 - 2⁶ = 616032097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 616032161.

It is not an unprimeable number, because it can be changed into a prime (616032191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62720 + ... + 71873.

It is an arithmetic number, because the mean of its divisors is an integer number (80756400).

Almost surely, 2^616032161 is an apocalyptic number.

It is an amenable number.

616032161 is a deficient number, since it is larger than the sum of its proper divisors (30019039).

616032161 is a wasteful number, since it uses less digits than its factorization.

616032161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134815.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 616032161 is about 24819.9951853339. The cubic root of 616032161 is about 850.8789804724.

Adding to 616032161 its reverse (161230616), we get a palindrome (777262777).

The spelling of 616032161 in words is "six hundred sixteen million, thirty-two thousand, one hundred sixty-one".