650616611 has 4 divisors (see below), whose sum is σ = 657927000. Its totient is φ = 643306224.

The previous prime is 650616559. The next prime is 650616643. The reversal of 650616611 is 116616056.

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

It is a cyclic number.

It is not a de Polignac number, because 650616611 - 2¹⁰ = 650615587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (650616671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3655061 + ... + 3655238.

It is an arithmetic number, because the mean of its divisors is an integer number (164481750).

Almost surely, 2^650616611 is an apocalyptic number.

650616611 is a deficient number, since it is larger than the sum of its proper divisors (7310389).

650616611 is an equidigital number, since it uses as much as digits as its factorization.

650616611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7310388.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 650616611 is about 25507.1874380536. The cubic root of 650616611 is about 866.5129329058.

The spelling of 650616611 in words is "six hundred fifty million, six hundred sixteen thousand, six hundred eleven".