12546554522 has 8 divisors (see below), whose sum is σ = 18822502656. Its totient is φ = 6272386972.

The previous prime is 12546554521. The next prime is 12546554549. The reversal of 12546554522 is 22545564521.

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 12546554522.

It is not an unprimeable number, because it can be changed into a prime (12546554521) 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, 427388 + ... + 455799.

It is an arithmetic number, because the mean of its divisors is an integer number (2352812832).

Almost surely, 2^12546554522 is an apocalyptic number.

12546554522 is a deficient number, since it is larger than the sum of its proper divisors (6275948134).

12546554522 is an equidigital number, since it uses as much as digits as its factorization.

12546554522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890292.

The product of its digits is 480000, while the sum is 41.

Subtracting 12546554522 from its reverse (22545564521), we obtain a palindrome (9999009999).

The spelling of 12546554522 in words is "twelve billion, five hundred forty-six million, five hundred fifty-four thousand, five hundred twenty-two".