616160665 has 8 divisors (see below), whose sum is σ = 782886600. Its totient is φ = 463932672.

The previous prime is 616160663. The next prime is 616160683. The reversal of 616160665 is 566061616.

It can be written as a sum of positive squares in 4 ways, for example, as 83612736 + 532547929 = 9144^2 + 23077^2 .

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 616160665 - 2¹ = 616160663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (616160663) 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, 3624390 + ... + 3624559.

It is an arithmetic number, because the mean of its divisors is an integer number (97860825).

Almost surely, 2^616160665 is an apocalyptic number.

It is an amenable number.

616160665 is a deficient number, since it is larger than the sum of its proper divisors (166725935).

616160665 is a wasteful number, since it uses less digits than its factorization.

616160665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7248971.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 616160665 is about 24822.5837696240. The cubic root of 616160665 is about 850.9381406686.

The spelling of 616160665 in words is "six hundred sixteen million, one hundred sixty thousand, six hundred sixty-five".