650406104440 has 64 divisors (see below), whose sum is σ = 1527180298560. Its totient is φ = 248828236800.

The previous prime is 650406104401. The next prime is 650406104473. The reversal of 650406104440 is 44401604056.

It is a junction number, because it is equal to n+sod(n) for n = 650406104396 and 650406104405.

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 15 ways as a sum of consecutive naturals, for example, 12763492 + ... + 12814348.

It is an arithmetic number, because the mean of its divisors is an integer number (23862192165).

Almost surely, 2^650406104440 is an apocalyptic number.

It is an amenable number.

650406104440 is an abundant number, since it is smaller than the sum of its proper divisors (876774194120).

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

650406104440 is a wasteful number, since it uses less digits than its factorization.

650406104440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64792 (or 64788 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 650406104440 its reverse (44401604056), we get a palindrome (694807708496).

The spelling of 650406104440 in words is "six hundred fifty billion, four hundred six million, one hundred four thousand, four hundred forty".