650664212352 has 256 divisors, whose sum is σ = 2190127680000. Its totient is φ = 166232678400.

The previous prime is 650664212347. The next prime is 650664212353. The reversal of 650664212352 is 253212466056.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650664212353) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1623274 + ... + 1984022.

It is an arithmetic number, because the mean of its divisors is an integer number (8555186250).

Almost surely, 2^650664212352 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 650664212352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1095063840000).

650664212352 is an abundant number, since it is smaller than the sum of its proper divisors (1539463467648).

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

650664212352 is a wasteful number, since it uses less digits than its factorization.

650664212352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360845 (or 360833 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 650664212352 in words is "six hundred fifty billion, six hundred sixty-four million, two hundred twelve thousand, three hundred fifty-two".