12523001543466 has 32 divisors (see below), whose sum is σ = 25429140959040. Its totient is φ = 4110523207296.

The previous prime is 12523001543447. The next prime is 12523001543513. The reversal of 12523001543466 is 66434510032521.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4610481 + ... + 6804596.

It is an arithmetic number, because the mean of its divisors is an integer number (794660654970).

Almost surely, 2^{12523001543466} is an apocalyptic number.

12523001543466 is an abundant number, since it is smaller than the sum of its proper divisors (12906139415574).

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

12523001543466 is a wasteful number, since it uses less digits than its factorization.

12523001543466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11417878.

The product of its (nonzero) digits is 518400, while the sum is 42.

Adding to 12523001543466 its reverse (66434510032521), we get a palindrome (78957511575987).

The spelling of 12523001543466 in words is "twelve trillion, five hundred twenty-three billion, one million, five hundred forty-three thousand, four hundred sixty-six".