616233663 has 24 divisors (see below), whose sum is σ = 977388048. Its totient is φ = 386653824.

The previous prime is 616233659. The next prime is 616233671. The reversal of 616233663 is 366332616.

It is a happy number.

616233663 is a `hidden beast` number, since 616 + 2 + 3 + 36 + 6 + 3 = 666.

It is not a de Polignac number, because 616233663 - 2² = 616233659 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616233613) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70456 + ... + 78717.

It is an arithmetic number, because the mean of its divisors is an integer number (40724502).

Almost surely, 2^616233663 is an apocalyptic number.

616233663 is a deficient number, since it is larger than the sum of its proper divisors (361154385).

616233663 is a wasteful number, since it uses less digits than its factorization.

616233663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149205 (or 149193 counting only the distinct ones).

The product of its digits is 69984, while the sum is 36.

The square root of 616233663 is about 24824.0541209529. The cubic root of 616233663 is about 850.9717435545.

The spelling of 616233663 in words is "six hundred sixteen million, two hundred thirty-three thousand, six hundred sixty-three".