1530206550641 has 4 divisors (see below), whose sum is σ = 1532098030500. Its totient is φ = 1528315070784.

The previous prime is 1530206550619. The next prime is 1530206550721. The reversal of 1530206550641 is 1460556020351.

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 1339343290000 + 190863260641 = 1157300^2 + 436879^2 .

It is a cyclic number.

It is not a de Polignac number, because 1530206550641 - 2¹⁰ = 1530206549617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1530206550595 and 1530206550604.

It is not an unprimeable number, because it can be changed into a prime (1530206550241) 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, 945738716 + ... + 945740333.

It is an arithmetic number, because the mean of its divisors is an integer number (383024507625).

Almost surely, 2^{1530206550641} is an apocalyptic number.

It is an amenable number.

1530206550641 is a deficient number, since it is larger than the sum of its proper divisors (1891479859).

1530206550641 is an equidigital number, since it uses as much as digits as its factorization.

1530206550641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1891479858.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 1530206550641 in words is "one trillion, five hundred thirty billion, two hundred six million, five hundred fifty thousand, six hundred forty-one".