1630653306613 has 8 divisors (see below), whose sum is σ = 1668314223576. Its totient is φ = 1593247718400.

The previous prime is 1630653306539. The next prime is 1630653306637. The reversal of 1630653306613 is 3166033560361.

It can be written as a sum of positive squares in 4 ways, for example, as 914534553969 + 716118752644 = 956313^2 + 846238^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1630653306613 - 2⁹ = 1630653306101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1630653306613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630653306673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63819268 + ... + 63844813.

It is an arithmetic number, because the mean of its divisors is an integer number (208539277947).

Almost surely, 2^{1630653306613} is an apocalyptic number.

It is an amenable number.

1630653306613 is a deficient number, since it is larger than the sum of its proper divisors (37660916963).

1630653306613 is a wasteful number, since it uses less digits than its factorization.

1630653306613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127664375.

The product of its (nonzero) digits is 524880, while the sum is 43.

Adding to 1630653306613 its reverse (3166033560361), we get a palindrome (4796686866974).

The spelling of 1630653306613 in words is "one trillion, six hundred thirty billion, six hundred fifty-three million, three hundred six thousand, six hundred thirteen".