616506543 has 12 divisors (see below), whose sum is σ = 914577768. Its totient is φ = 399895920.

The previous prime is 616506529. The next prime is 616506557. The reversal of 616506543 is 345605616.

616506543 is a `hidden beast` number, since 61 + 6 + 50 + 6 + 543 = 666.

It is an interprime number because it is at equal distance from previous prime (616506529) and next prime (616506557).

It is not a de Polignac number, because 616506543 - 2⁵ = 616506511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 616506498 and 616506507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616506503) 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 11 ways as a sum of consecutive naturals, for example, 925353 + ... + 926018.

It is an arithmetic number, because the mean of its divisors is an integer number (76214814).

Almost surely, 2^616506543 is an apocalyptic number.

616506543 is a deficient number, since it is larger than the sum of its proper divisors (298071225).

616506543 is a wasteful number, since it uses less digits than its factorization.

616506543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851414 (or 1851411 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 616506543 is about 24829.5497945492. The cubic root of 616506543 is about 851.0973338490.

The spelling of 616506543 in words is "six hundred sixteen million, five hundred six thousand, five hundred forty-three".