616954663 has 8 divisors (see below), whose sum is σ = 664864928. Its totient is φ = 569109024.

The previous prime is 616954661. The next prime is 616954673. The reversal of 616954663 is 366459616.

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 616954663 - 2¹ = 616954661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616954661) 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, 4681 + ... + 35437.

It is an arithmetic number, because the mean of its divisors is an integer number (83108116).

Almost surely, 2^616954663 is an apocalyptic number.

616954663 is a deficient number, since it is larger than the sum of its proper divisors (47910265).

616954663 is a wasteful number, since it uses less digits than its factorization.

616954663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32313.

The product of its digits is 699840, while the sum is 46.

The square root of 616954663 is about 24838.5720805364. The cubic root of 616954663 is about 851.3034962279.

The spelling of 616954663 in words is "six hundred sixteen million, nine hundred fifty-four thousand, six hundred sixty-three".