12520063266 has 16 divisors (see below), whose sum is σ = 25622455584. Its totient is φ = 4076299584.

The previous prime is 12520063229. The next prime is 12520063267. The reversal of 12520063266 is 66236002521.

It is not an unprimeable number, because it can be changed into a prime (12520063267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24263431 + ... + 24263946.

It is an arithmetic number, because the mean of its divisors is an integer number (1601403474).

Almost surely, 2^12520063266 is an apocalyptic number.

12520063266 is an abundant number, since it is smaller than the sum of its proper divisors (13102392318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12520063266 is a wasteful number, since it uses less digits than its factorization.

12520063266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48527425.

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 12520063266 its reverse (66236002521), we get a palindrome (78756065787).

The spelling of 12520063266 in words is "twelve billion, five hundred twenty million, sixty-three thousand, two hundred sixty-six".