12630340235545 has 4 divisors (see below), whose sum is σ = 15156408282660. Its totient is φ = 10104272188432.

The previous prime is 12630340235509. The next prime is 12630340235551. The reversal of 12630340235545 is 54553204303621.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8531703544464 + 4098636691081 = 2920908^2 + 2024509^2 .

It is a cyclic number.

It is not a de Polignac number, because 12630340235545 - 2⁹ = 12630340235033 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1263034023550 + ... + 1263034023559.

It is an arithmetic number, because the mean of its divisors is an integer number (3789102070665).

Almost surely, 2^{12630340235545} is an apocalyptic number.

It is an amenable number.

12630340235545 is a deficient number, since it is larger than the sum of its proper divisors (2526068047115).

12630340235545 is an equidigital number, since it uses as much as digits as its factorization.

12630340235545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2526068047114.

The product of its (nonzero) digits is 1296000, while the sum is 43.

The spelling of 12630340235545 in words is "twelve trillion, six hundred thirty billion, three hundred forty million, two hundred thirty-five thousand, five hundred forty-five".