12581660224 has 63 divisors (see below), whose sum is σ = 29057440107. Its totient is φ = 5389448064.

The previous prime is 12581660213. The next prime is 12581660233. The reversal of 12581660224 is 42206618521.

The square root of 12581660224 is 112168.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6280407 + ... + 6282409.

Almost surely, 2^12581660224 is an apocalyptic number.

12581660224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12581660224 is the 112168-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12581660224

12581660224 is an abundant number, since it is smaller than the sum of its proper divisors (16475779883).

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

12581660224 is an frugal number, since it uses more digits than its factorization.

12581660224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4032 (or 2012 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The spelling of 12581660224 in words is "twelve billion, five hundred eighty-one million, six hundred sixty thousand, two hundred twenty-four".