650363161644 has 36 divisors (see below), whose sum is σ = 1878826912144. Its totient is φ = 185818046112.

The previous prime is 650363161631. The next prime is 650363161697. The reversal of 650363161644 is 446161363056.

650363161644 is a `hidden beast` number, since 6 + 5 + 0 + 3 + 631 + 6 + 1 + 6 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 650363161644.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1290402847 + ... + 1290403350.

Almost surely, 2^650363161644 is an apocalyptic number.

It is an amenable number.

650363161644 is an abundant number, since it is smaller than the sum of its proper divisors (1228463750500).

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

650363161644 is a wasteful number, since it uses less digits than its factorization.

650363161644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2580806214 (or 2580806209 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

The spelling of 650363161644 in words is "six hundred fifty billion, three hundred sixty-three million, one hundred sixty-one thousand, six hundred forty-four".