12662179824 has 80 divisors (see below), whose sum is σ = 37437603840. Its totient is φ = 3612537600.

The previous prime is 12662179813. The next prime is 12662179847. The reversal of 12662179824 is 42897126621.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208657 + ... + 262415.

It is an arithmetic number, because the mean of its divisors is an integer number (467970048).

Almost surely, 2^12662179824 is an apocalyptic number.

12662179824 is a gapful number since it is divisible by the number (14) 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 12662179824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18718801920).

12662179824 is an abundant number, since it is smaller than the sum of its proper divisors (24775424016).

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

12662179824 is a wasteful number, since it uses less digits than its factorization.

12662179824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54478 (or 54472 counting only the distinct ones).

The product of its digits is 580608, while the sum is 48.

The spelling of 12662179824 in words is "twelve billion, six hundred sixty-two million, one hundred seventy-nine thousand, eight hundred twenty-four".