616656611 has 16 divisors (see below), whose sum is σ = 653909760. Its totient is φ = 580351200.

The previous prime is 616656587. The next prime is 616656631. The reversal of 616656611 is 116656616.

It is a happy number.

616656611 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 616656611 - 2¹⁰ = 616655587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616656631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415076 + ... + 416558.

It is an arithmetic number, because the mean of its divisors is an integer number (40869360).

Almost surely, 2^616656611 is an apocalyptic number.

616656611 is a deficient number, since it is larger than the sum of its proper divisors (37253149).

616656611 is a wasteful number, since it uses less digits than its factorization.

616656611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1786.

The product of its digits is 38880, while the sum is 38.

The square root of 616656611 is about 24832.5715744463. The cubic root of 616656611 is about 851.1663853534.

The spelling of 616656611 in words is "six hundred sixteen million, six hundred fifty-six thousand, six hundred eleven".