650255121712 has 120 divisors (see below), whose sum is σ = 1473951248880. Its totient is φ = 277089361920.

The previous prime is 650255121701. The next prime is 650255121721. The reversal of 650255121712 is 217121552056.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139627288 + ... + 139631944.

It is an arithmetic number, because the mean of its divisors is an integer number (12282927074).

Almost surely, 2^650255121712 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 650255121712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (736975624440).

650255121712 is an abundant number, since it is smaller than the sum of its proper divisors (823696127168).

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

650255121712 is a wasteful number, since it uses less digits than its factorization.

650255121712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5659 (or 5646 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 37.

Adding to 650255121712 its reverse (217121552056), we get a palindrome (867376673768).

The spelling of 650255121712 in words is "six hundred fifty billion, two hundred fifty-five million, one hundred twenty-one thousand, seven hundred twelve".