616616233 has 4 divisors (see below), whose sum is σ = 617569920. Its totient is φ = 615662548.

The previous prime is 616616227. The next prime is 616616237. The reversal of 616616233 is 332616616.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616616233 is a prime.

It is a super-2 number, since 2×616616233² = 760431157598220578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616616237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 475873 + ... + 477166.

It is an arithmetic number, because the mean of its divisors is an integer number (154392480).

Almost surely, 2^616616233 is an apocalyptic number.

It is an amenable number.

616616233 is a deficient number, since it is larger than the sum of its proper divisors (953687).

616616233 is an equidigital number, since it uses as much as digits as its factorization.

616616233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953686.

The product of its digits is 23328, while the sum is 34.

The square root of 616616233 is about 24831.7585563327. The cubic root of 616616233 is about 851.1478071334.

The spelling of 616616233 in words is "six hundred sixteen million, six hundred sixteen thousand, two hundred thirty-three".