650412361220 has 24 divisors (see below), whose sum is σ = 1446211015704. Its totient is φ = 244861124096.

The previous prime is 650412361217. The next prime is 650412361231. The reversal of 650412361220 is 22163214056.

It can be written as a sum of positive squares in 4 ways, for example, as 250098009604 + 400314351616 = 500098^2 + 632704^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 956488427 + ... + 956489106.

It is an arithmetic number, because the mean of its divisors is an integer number (60258792321).

Almost surely, 2^650412361220 is an apocalyptic number.

It is an amenable number.

650412361220 is an abundant number, since it is smaller than the sum of its proper divisors (795798654484).

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

650412361220 is a wasteful number, since it uses less digits than its factorization.

650412361220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912977559 (or 1912977557 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 650412361220 its reverse (22163214056), we get a palindrome (672575575276).

The spelling of 650412361220 in words is "six hundred fifty billion, four hundred twelve million, three hundred sixty-one thousand, two hundred twenty".