12522403681920 has 768 divisors, whose sum is σ = 49351045968000. Its totient is φ = 3035693168640.

The previous prime is 12522403681891. The next prime is 12522403681933. The reversal of 12522403681920 is 2918630422521.

12522403681920 is a `hidden beast` number, since 1 + 2 + 52 + 2 + 403 + 6 + 8 + 192 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 169324311 + ... + 169398249.

Almost surely, 2^{12522403681920} is an apocalyptic number.

12522403681920 is a gapful number since it is divisible by the number (10) 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 12522403681920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24675522984000).

12522403681920 is an abundant number, since it is smaller than the sum of its proper divisors (36828642286080).

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

12522403681920 is an frugal number, since it uses more digits than its factorization.

12522403681920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74001 (or 73960 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 12522403681920 in words is "twelve trillion, five hundred twenty-two billion, four hundred three million, six hundred eighty-one thousand, nine hundred twenty".