616323616 has 12 divisors (see below), whose sum is σ = 1213387182. Its totient is φ = 308161792.

The previous prime is 616323611. The next prime is 616323619.

616323616 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 408848400 + 207475216 = 20220^2 + 14404^2 .

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (616323611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9630025 + ... + 9630088.

Almost surely, 2^616323616 is an apocalyptic number.

It is an amenable number.

616323616 is a deficient number, since it is larger than the sum of its proper divisors (597063566).

616323616 is a wasteful number, since it uses less digits than its factorization.

616323616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19260123 (or 19260115 counting only the distinct ones).

The product of its digits is 23328, while the sum is 34.

The square root of 616323616 is about 24825.8658660680. The cubic root of 616323616 is about 851.0131476200.

The spelling of 616323616 in words is "six hundred sixteen million, three hundred twenty-three thousand, six hundred sixteen".