650622121117 has 4 divisors (see below), whose sum is σ = 653924771676. Its totient is φ = 647319470560.

The previous prime is 650622121103. The next prime is 650622121139. The reversal of 650622121117 is 711121226056.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 568012439556 + 82609681561 = 753666^2 + 287419^2 .

It is a cyclic number.

It is not a de Polignac number, because 650622121117 - 2³⁹ = 100866307229 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 (650622121217) 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, 1651324984 + ... + 1651325377.

It is an arithmetic number, because the mean of its divisors is an integer number (163481192919).

Almost surely, 2^650622121117 is an apocalyptic number.

It is an amenable number.

650622121117 is a deficient number, since it is larger than the sum of its proper divisors (3302650559).

650622121117 is a wasteful number, since it uses less digits than its factorization.

650622121117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3302650558.

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 650622121117 in words is "six hundred fifty billion, six hundred twenty-two million, one hundred twenty-one thousand, one hundred seventeen".