616229968 has 20 divisors (see below), whose sum is σ = 1226215540. Its totient is φ = 299787264.

The previous prime is 616229963. The next prime is 616229969. The reversal of 616229968 is 869922616.

It can be written as a sum of positive squares in 2 ways, for example, as 594774544 + 21455424 = 24388^2 + 4632^2 .

It is a super-2 number, since 2×616229968² = 759478746922562048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616229963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 519873 + ... + 521056.

It is an arithmetic number, because the mean of its divisors is an integer number (61310777).

Almost surely, 2^616229968 is an apocalyptic number.

It is an amenable number.

616229968 is a deficient number, since it is larger than the sum of its proper divisors (609985572).

616229968 is a wasteful number, since it uses less digits than its factorization.

616229968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040974 (or 1040968 counting only the distinct ones).

The product of its digits is 559872, while the sum is 49.

The square root of 616229968 is about 24823.9796970591. The cubic root of 616229968 is about 850.9700427132.

The spelling of 616229968 in words is "six hundred sixteen million, two hundred twenty-nine thousand, nine hundred sixty-eight".