616115663 has 8 divisors (see below), whose sum is σ = 626327856. Its totient is φ = 605987200.

The previous prime is 616115659. The next prime is 616115671. The reversal of 616115663 is 366511616.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 616115663 - 2² = 616115659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616115623) 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 7 ways as a sum of consecutive naturals, for example, 6008 + ... + 35613.

It is an arithmetic number, because the mean of its divisors is an integer number (78290982).

Almost surely, 2^616115663 is an apocalyptic number.

616115663 is a deficient number, since it is larger than the sum of its proper divisors (10212193).

616115663 is a wasteful number, since it uses less digits than its factorization.

616115663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41865.

The product of its digits is 19440, while the sum is 35.

The square root of 616115663 is about 24821.6772801517. The cubic root of 616115663 is about 850.9174237503.

The spelling of 616115663 in words is "six hundred sixteen million, one hundred fifteen thousand, six hundred sixty-three".