12662421246 has 48 divisors (see below), whose sum is σ = 28080359424. Its totient is φ = 4121952912.

The previous prime is 12662421197. The next prime is 12662421269. The reversal of 12662421246 is 64212426621.

12662421246 is a `hidden beast` number, since 1 + 2 + 6 + 624 + 2 + 1 + 24 + 6 = 666.

It is a super-2 number, since 2×12662421246² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12662421246.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 375535 + ... + 407861.

It is an arithmetic number, because the mean of its divisors is an integer number (585007488).

Almost surely, 2^12662421246 is an apocalyptic number.

12662421246 is an abundant number, since it is smaller than the sum of its proper divisors (15417938178).

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

12662421246 is a wasteful number, since it uses less digits than its factorization.

12662421246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32845 (or 32842 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

Adding to 12662421246 its reverse (64212426621), we get a palindrome (76874847867).

The spelling of 12662421246 in words is "twelve billion, six hundred sixty-two million, four hundred twenty-one thousand, two hundred forty-six".