650116566655 has 4 divisors (see below), whose sum is σ = 780139879992. Its totient is φ = 520093253320.

The previous prime is 650116566637. The next prime is 650116566679. The reversal of 650116566655 is 556665611056.

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

It is not a de Polignac number, because 650116566655 - 2²⁷ = 649982348927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65011656661 + ... + 65011656670.

It is an arithmetic number, because the mean of its divisors is an integer number (195034969998).

Almost surely, 2^650116566655 is an apocalyptic number.

650116566655 is a deficient number, since it is larger than the sum of its proper divisors (130023313337).

650116566655 is a wasteful number, since it uses less digits than its factorization.

650116566655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130023313336.

The product of its (nonzero) digits is 4860000, while the sum is 52.

The spelling of 650116566655 in words is "six hundred fifty billion, one hundred sixteen million, five hundred sixty-six thousand, six hundred fifty-five".