650406043621506 has 16 divisors (see below), whose sum is σ = 1325355711531264. Its totient is φ = 212711410492464.

The previous prime is 650406043621493. The next prime is 650406043621507. The reversal of 650406043621506 is 605126340604056.

It is not an unprimeable number, because it can be changed into a prime (650406043621507) 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, 1022651011666 + ... + 1022651012301.

It is an arithmetic number, because the mean of its divisors is an integer number (82834731970704).

Almost surely, 2^{650406043621506} is an apocalyptic number.

650406043621506 is an abundant number, since it is smaller than the sum of its proper divisors (674949667909758).

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

650406043621506 is a wasteful number, since it uses less digits than its factorization.

650406043621506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2045302024025.

The product of its (nonzero) digits is 3110400, while the sum is 48.

The spelling of 650406043621506 in words is "six hundred fifty trillion, four hundred six billion, forty-three million, six hundred twenty-one thousand, five hundred six".