1630621660271 has 4 divisors (see below), whose sum is σ = 1674692515992. Its totient is φ = 1586550804552.

The previous prime is 1630621660253. The next prime is 1630621660303. The reversal of 1630621660271 is 1720661260361.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1630621660271 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 (1630621660201) 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, 22035427805 + ... + 22035427878.

It is an arithmetic number, because the mean of its divisors is an integer number (418673128998).

Almost surely, 2^{1630621660271} is an apocalyptic number.

1630621660271 is a deficient number, since it is larger than the sum of its proper divisors (44070855721).

1630621660271 is an equidigital number, since it uses as much as digits as its factorization.

1630621660271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44070855720.

The product of its (nonzero) digits is 108864, while the sum is 41.

The spelling of 1630621660271 in words is "one trillion, six hundred thirty billion, six hundred twenty-one million, six hundred sixty thousand, two hundred seventy-one".