616655113 has 4 divisors (see below), whose sum is σ = 619785540. Its totient is φ = 613524688.

The previous prime is 616655111. The next prime is 616655141. The reversal of 616655113 is 311556616.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 403728649 + 212926464 = 20093^2 + 14592^2 .

It is a cyclic number.

It is not a de Polignac number, because 616655113 - 2¹ = 616655111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616655111) 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, 1564918 + ... + 1565311.

It is an arithmetic number, because the mean of its divisors is an integer number (154946385).

Almost surely, 2^616655113 is an apocalyptic number.

It is an amenable number.

616655113 is a deficient number, since it is larger than the sum of its proper divisors (3130427).

616655113 is a wasteful number, since it uses less digits than its factorization.

616655113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3130426.

The product of its digits is 16200, while the sum is 34.

The square root of 616655113 is about 24832.5414124290. The cubic root of 616655113 is about 851.1656961269.

The spelling of 616655113 in words is "six hundred sixteen million, six hundred fifty-five thousand, one hundred thirteen".