12662637504 has 112 divisors (see below), whose sum is σ = 36659490816. Its totient is φ = 3825561600.

The previous prime is 12662637469. The next prime is 12662637509. The reversal of 12662637504 is 40573626621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12662637509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 702849 + ... + 720639.

Almost surely, 2^12662637504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12662637504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18329745408).

12662637504 is an abundant number, since it is smaller than the sum of its proper divisors (23996853312).

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

12662637504 is a wasteful number, since it uses less digits than its factorization.

12662637504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18154 (or 18144 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The spelling of 12662637504 in words is "twelve billion, six hundred sixty-two million, six hundred thirty-seven thousand, five hundred four".