616523066 has 8 divisors (see below), whose sum is σ = 925058100. Its totient is φ = 308170368.

The previous prime is 616523053. The next prime is 616523069. The reversal of 616523066 is 660325616.

It can be written as a sum of positive squares in 2 ways, for example, as 586656841 + 29866225 = 24221^2 + 5465^2 .

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 (616523069) 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 3 ways as a sum of consecutive naturals, for example, 36791 + ... + 50858.

Almost surely, 2^616523066 is an apocalyptic number.

616523066 is a deficient number, since it is larger than the sum of its proper divisors (308535034).

616523066 is a wasteful number, since it uses less digits than its factorization.

616523066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91168.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 616523066 is about 24829.8825208659. The cubic root of 616523066 is about 851.1049372047.

The spelling of 616523066 in words is "six hundred sixteen million, five hundred twenty-three thousand, sixty-six".