12488138066 has 16 divisors (see below), whose sum is σ = 18986688600. Its totient is φ = 6159742848.

The previous prime is 12488138059. The next prime is 12488138081. The reversal of 12488138066 is 66083188421.

It can be written as a sum of positive squares in 4 ways, for example, as 12415530625 + 72607441 = 111425^2 + 8521^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12488138066.

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, 75155 + ... + 174998.

Almost surely, 2^12488138066 is an apocalyptic number.

12488138066 is a deficient number, since it is larger than the sum of its proper divisors (6498550534).

12488138066 is a wasteful number, since it uses less digits than its factorization.

12488138066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250493.

The product of its (nonzero) digits is 442368, while the sum is 47.

The spelling of 12488138066 in words is "twelve billion, four hundred eighty-eight million, one hundred thirty-eight thousand, sixty-six".