650536440321 has 8 divisors (see below), whose sum is σ = 868730884000. Its totient is φ = 433016478432.

The previous prime is 650536440269. The next prime is 650536440329. The reversal of 650536440321 is 123044635056.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 650536440321 - 2¹⁴ = 650536423937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 650536440321.

It is not an unprimeable number, because it can be changed into a prime (650536440329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168618196 + ... + 168622053.

It is an arithmetic number, because the mean of its divisors is an integer number (108591360500).

Almost surely, 2^650536440321 is an apocalyptic number.

It is an amenable number.

650536440321 is a deficient number, since it is larger than the sum of its proper divisors (218194443679).

650536440321 is a wasteful number, since it uses less digits than its factorization.

650536440321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337240895.

The product of its (nonzero) digits is 259200, while the sum is 39.

The spelling of 650536440321 in words is "six hundred fifty billion, five hundred thirty-six million, four hundred forty thousand, three hundred twenty-one".