1630530420443 has 4 divisors (see below), whose sum is σ = 1630533143520. Its totient is φ = 1630527697368.

The previous prime is 1630530420401. The next prime is 1630530420551. The reversal of 1630530420443 is 3440240350361.

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

It is a cyclic number.

It is not a de Polignac number, because 1630530420443 - 2¹⁴ = 1630530404059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1630530420943) 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, 27980 + ... + 1806057.

It is an arithmetic number, because the mean of its divisors is an integer number (407633285880).

Almost surely, 2^{1630530420443} is an apocalyptic number.

1630530420443 is a deficient number, since it is larger than the sum of its proper divisors (2723077).

1630530420443 is an equidigital number, since it uses as much as digits as its factorization.

1630530420443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2723076.

The product of its (nonzero) digits is 103680, while the sum is 35.

The spelling of 1630530420443 in words is "one trillion, six hundred thirty billion, five hundred thirty million, four hundred twenty thousand, four hundred forty-three".