650215512056 has 64 divisors (see below), whose sum is σ = 1349530398720. Its totient is φ = 291227998720.

The previous prime is 650215511993. The next prime is 650215512071.

650215512056 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2681216 + ... + 2913648.

It is an arithmetic number, because the mean of its divisors is an integer number (21086412480).

Almost surely, 2^650215512056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 650215512056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (674765199360).

650215512056 is an abundant number, since it is smaller than the sum of its proper divisors (699314886664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

650215512056 is a wasteful number, since it uses less digits than its factorization.

650215512056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232916 (or 232912 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 38.

The spelling of 650215512056 in words is "six hundred fifty billion, two hundred fifteen million, five hundred twelve thousand, fifty-six".