650423201020 has 24 divisors (see below), whose sum is σ = 1366301142864. Its totient is φ = 260090724096.

The previous prime is 650423200957. The next prime is 650423201039. The reversal of 650423201020 is 20102324056.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4841854 + ... + 4974373.

It is an arithmetic number, because the mean of its divisors is an integer number (56929214286).

Almost surely, 2^650423201020 is an apocalyptic number.

It is an amenable number.

650423201020 is an abundant number, since it is smaller than the sum of its proper divisors (715877941844).

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

650423201020 is a wasteful number, since it uses less digits than its factorization.

650423201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9819549 (or 9819547 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 650423201020 its reverse (20102324056), we get a palindrome (670525525076).

The spelling of 650423201020 in words is "six hundred fifty billion, four hundred twenty-three million, two hundred one thousand, twenty".