616242655 has 16 divisors (see below), whose sum is σ = 845596224. Its totient is φ = 422334720.

The previous prime is 616242643. The next prime is 616242661. The reversal of 616242655 is 556242616.

It is not a de Polignac number, because 616242655 - 2⁵ = 616242623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 81829 + ... + 89041.

It is an arithmetic number, because the mean of its divisors is an integer number (52849764).

Almost surely, 2^616242655 is an apocalyptic number.

616242655 is a deficient number, since it is larger than the sum of its proper divisors (229353569).

616242655 is a wasteful number, since it uses less digits than its factorization.

616242655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9666.

The product of its digits is 86400, while the sum is 37.

The square root of 616242655 is about 24824.2352349473. The cubic root of 616242655 is about 850.9758826233.

The spelling of 616242655 in words is "six hundred sixteen million, two hundred forty-two thousand, six hundred fifty-five".