12523123664066 has 8 divisors (see below), whose sum is σ = 18786315155520. Its totient is φ = 6261018612228.

The previous prime is 12523123664063. The next prime is 12523123664147. The reversal of 12523123664066 is 66046632132521.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12523123664066.

It is not an unprimeable number, because it can be changed into a prime (12523123664063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271581086 + ... + 271627193.

It is an arithmetic number, because the mean of its divisors is an integer number (2348289394440).

Almost surely, 2^{12523123664066} is an apocalyptic number.

12523123664066 is a deficient number, since it is larger than the sum of its proper divisors (6263191491454).

12523123664066 is a wasteful number, since it uses less digits than its factorization.

12523123664066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543219808.

The product of its (nonzero) digits is 1866240, while the sum is 47.

Adding to 12523123664066 its reverse (66046632132521), we get a palindrome (78569755796587).

The spelling of 12523123664066 in words is "twelve trillion, five hundred twenty-three billion, one hundred twenty-three million, six hundred sixty-four thousand, sixty-six".