12412156546 has 4 divisors (see below), whose sum is σ = 18618234822. Its totient is φ = 6206078272.

The previous prime is 12412156511. The next prime is 12412156577. The reversal of 12412156546 is 64565121421.

12412156546 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64565121421 = 23537 ⋅2743133.

It can be written as a sum of positive squares in only one way, i.e., 12020710321 + 391446225 = 109639^2 + 19785^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3103039135 + ... + 3103039138.

Almost surely, 2^12412156546 is an apocalyptic number.

12412156546 is a deficient number, since it is larger than the sum of its proper divisors (6206078276).

12412156546 is an equidigital number, since it uses as much as digits as its factorization.

12412156546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6206078275.

The product of its digits is 57600, while the sum is 37.

Adding to 12412156546 its reverse (64565121421), we get a palindrome (76977277967).

The spelling of 12412156546 in words is "twelve billion, four hundred twelve million, one hundred fifty-six thousand, five hundred forty-six".