650503220061 has 4 divisors (see below), whose sum is σ = 867337626752. Its totient is φ = 433668813372.

The previous prime is 650503220047. The next prime is 650503220093. The reversal of 650503220061 is 160022305056.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 650503220061 - 2²⁷ = 650369002333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650503220161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108417203341 + ... + 108417203346.

It is an arithmetic number, because the mean of its divisors is an integer number (216834406688).

Almost surely, 2^650503220061 is an apocalyptic number.

It is an amenable number.

650503220061 is a deficient number, since it is larger than the sum of its proper divisors (216834406691).

650503220061 is a wasteful number, since it uses less digits than its factorization.

650503220061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216834406690.

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 650503220061 in words is "six hundred fifty billion, five hundred three million, two hundred twenty thousand, sixty-one".