12455049816 has 144 divisors (see below), whose sum is σ = 38080879200. Its totient is φ = 3672155520.

The previous prime is 12455049809. The next prime is 12455049829. The reversal of 12455049816 is 61894055421.

12455049816 is a `hidden beast` number, since 1 + 2 + 4 + 550 + 4 + 98 + 1 + 6 = 666.

12455049816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 in 35 ways as a sum of consecutive naturals, for example, 303025 + ... + 341663.

It is an arithmetic number, because the mean of its divisors is an integer number (264450550).

Almost surely, 2^12455049816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12455049816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19040439600).

12455049816 is an abundant number, since it is smaller than the sum of its proper divisors (25625829384).

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

12455049816 is a wasteful number, since it uses less digits than its factorization.

12455049816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38710 (or 38692 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

It can be divided in two parts, 1245504 and 9816, that added together give a triangular number (1255320 = T₁₅₈₄).

The spelling of 12455049816 in words is "twelve billion, four hundred fifty-five million, forty-nine thousand, eight hundred sixteen".