616163224 has 8 divisors (see below), whose sum is σ = 1155306060. Its totient is φ = 308081608.

The previous prime is 616163221. The next prime is 616163237. The reversal of 616163224 is 422361616.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×616163224² = 759314237220148352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616163221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38510194 + ... + 38510209.

Almost surely, 2^616163224 is an apocalyptic number.

It is an amenable number.

616163224 is a deficient number, since it is larger than the sum of its proper divisors (539142836).

616163224 is a wasteful number, since it uses less digits than its factorization.

616163224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77020409 (or 77020405 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 616163224 is about 24822.6353153729. The cubic root of 616163224 is about 850.9393186880.

The spelling of 616163224 in words is "six hundred sixteen million, one hundred sixty-three thousand, two hundred twenty-four".