12630355405 has 8 divisors (see below), whose sum is σ = 15157608984. Its totient is φ = 10103496000.

The previous prime is 12630355319. The next prime is 12630355417. The reversal of 12630355405 is 50455303621.

It can be written as a sum of positive squares in 4 ways, for example, as 1847194441 + 10783160964 = 42979^2 + 103842^2 .

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

It is not a de Polignac number, because 12630355405 - 2¹¹ = 12630353357 is a prime.

It is a super-2 number, since 2×12630355405² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22746 + ... + 160555.

It is an arithmetic number, because the mean of its divisors is an integer number (1894701123).

Almost surely, 2^12630355405 is an apocalyptic number.

It is an amenable number.

12630355405 is a deficient number, since it is larger than the sum of its proper divisors (2527253579).

12630355405 is a wasteful number, since it uses less digits than its factorization.

12630355405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197087.

The product of its (nonzero) digits is 54000, while the sum is 34.

The spelling of 12630355405 in words is "twelve billion, six hundred thirty million, three hundred fifty-five thousand, four hundred five".