1630401055643 has 4 divisors (see below), whose sum is σ = 1630451197320. Its totient is φ = 1630350913968.

The previous prime is 1630401055627. The next prime is 1630401055651. The reversal of 1630401055643 is 3465501040361.

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 1630401055643 - 2⁴ = 1630401055627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1630401055597 and 1630401055606.

It is not an unprimeable number, because it can be changed into a prime (1630401057643) 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, 25022033 + ... + 25087106.

It is an arithmetic number, because the mean of its divisors is an integer number (407612799330).

Almost surely, 2^{1630401055643} is an apocalyptic number.

1630401055643 is a deficient number, since it is larger than the sum of its proper divisors (50141677).

1630401055643 is an equidigital number, since it uses as much as digits as its factorization.

1630401055643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50141676.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 1630401055643 in words is "one trillion, six hundred thirty billion, four hundred one million, fifty-five thousand, six hundred forty-three".