12662843424 has 144 divisors (see below), whose sum is σ = 42182241696. Its totient is φ = 3289036800.

The previous prime is 12662843383. The next prime is 12662843443. The reversal of 12662843424 is 42434826621.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70617 + ... + 174104.

It is an arithmetic number, because the mean of its divisors is an integer number (292932234).

Almost surely, 2^12662843424 is an apocalyptic number.

12662843424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12662843424 is an abundant number, since it is smaller than the sum of its proper divisors (29519398272).

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

12662843424 is a wasteful number, since it uses less digits than its factorization.

12662843424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244759 (or 244744 counting only the distinct ones).

The product of its digits is 442368, while the sum is 42.

It can be divided in two parts, 12662 and 843424, that added together give a triangular number (856086 = T₁₃₀₈).

The spelling of 12662843424 in words is "twelve billion, six hundred sixty-two million, eight hundred forty-three thousand, four hundred twenty-four".