650666220036 has 24 divisors (see below), whose sum is σ = 1735109920320. Its totient is φ = 185904634272.

The previous prime is 650666220023. The next prime is 650666220059. The reversal of 650666220036 is 630022666056.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 650666220036.

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, 3873013131 + ... + 3873013298.

It is an arithmetic number, because the mean of its divisors is an integer number (72296246680).

Almost surely, 2^650666220036 is an apocalyptic number.

It is an amenable number.

650666220036 is an abundant number, since it is smaller than the sum of its proper divisors (1084443700284).

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

650666220036 is a wasteful number, since it uses less digits than its factorization.

650666220036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7746026443 (or 7746026441 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 42.

The spelling of 650666220036 in words is "six hundred fifty billion, six hundred sixty-six million, two hundred twenty thousand, thirty-six".