12433621216 has 48 divisors (see below), whose sum is σ = 24922967328. Its totient is φ = 6104332800.

The previous prime is 12433621199. The next prime is 12433621217. The reversal of 12433621216 is 61212633421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12433621217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1191381 + ... + 1201771.

It is an arithmetic number, because the mean of its divisors is an integer number (519228486).

Almost surely, 2^12433621216 is an apocalyptic number.

12433621216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12433621216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12461483664).

12433621216 is an abundant number, since it is smaller than the sum of its proper divisors (12489346112).

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

12433621216 is a wasteful number, since it uses less digits than its factorization.

12433621216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11075 (or 11067 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The spelling of 12433621216 in words is "twelve billion, four hundred thirty-three million, six hundred twenty-one thousand, two hundred sixteen".