616563311 has 32 divisors (see below), whose sum is σ = 771015168. Its totient is φ = 480090240.

The previous prime is 616563307. The next prime is 616563313. The reversal of 616563311 is 113365616.

It is not a de Polignac number, because 616563311 - 2² = 616563307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616563313) 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 31 ways as a sum of consecutive naturals, for example, 2921996 + ... + 2922206.

It is an arithmetic number, because the mean of its divisors is an integer number (24094224).

Almost surely, 2^616563311 is an apocalyptic number.

616563311 is a deficient number, since it is larger than the sum of its proper divisors (154451857).

616563311 is a wasteful number, since it uses less digits than its factorization.

616563311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591.

The product of its digits is 9720, while the sum is 32.

The square root of 616563311 is about 24830.6929222686. The cubic root of 616563311 is about 851.1234560970.

The spelling of 616563311 in words is "six hundred sixteen million, five hundred sixty-three thousand, three hundred eleven".