12523996416 has 36 divisors (see below), whose sum is σ = 33332096672. Its totient is φ = 4174665216.

The previous prime is 12523996391. The next prime is 12523996421. The reversal of 12523996416 is 61469932521.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8152876 + ... + 8154411.

Almost surely, 2^12523996416 is an apocalyptic number.

12523996416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12523996416 is an abundant number, since it is smaller than the sum of its proper divisors (20808100256).

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

12523996416 is an equidigital number, since it uses as much as digits as its factorization.

12523996416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16307306 (or 16307292 counting only the distinct ones).

The product of its digits is 699840, while the sum is 48.

The spelling of 12523996416 in words is "twelve billion, five hundred twenty-three million, nine hundred ninety-six thousand, four hundred sixteen".