616544463 has 16 divisors (see below), whose sum is σ = 862557696. Its totient is φ = 390978720.

The previous prime is 616544459. The next prime is 616544477. The reversal of 616544463 is 364445616.

It is not a de Polignac number, because 616544463 - 2² = 616544459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616544443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12195 + ... + 37172.

It is an arithmetic number, because the mean of its divisors is an integer number (53909856).

Almost surely, 2^616544463 is an apocalyptic number.

616544463 is a deficient number, since it is larger than the sum of its proper divisors (246013233).

616544463 is a wasteful number, since it uses less digits than its factorization.

616544463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49574.

The product of its digits is 207360, while the sum is 39.

The square root of 616544463 is about 24830.3133890815. The cubic root of 616544463 is about 851.1147832173.

The spelling of 616544463 in words is "six hundred sixteen million, five hundred forty-four thousand, four hundred sixty-three".