12520491540480 has 2016 divisors, whose sum is σ = 56034611332128. Its totient is φ = 2556533145600.

The previous prime is 12520491540461. The next prime is 12520491540547. The reversal of 12520491540480 is 8404519402521.

12520491540480 is a `hidden beast` number, since 1 + 2 + 5 + 20 + 4 + 9 + 1 + 540 + 4 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (2016).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 12120514044 + ... + 12120515076.

Almost surely, 2^{12520491540480} is an apocalyptic number.

12520491540480 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 12520491540480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28017305666064).

12520491540480 is an abundant number, since it is smaller than the sum of its proper divisors (43514119791648).

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

12520491540480 is a wasteful number, since it uses less digits than its factorization.

12520491540480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156 (or 1122 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The spelling of 12520491540480 in words is "twelve trillion, five hundred twenty billion, four hundred ninety-one million, five hundred forty thousand, four hundred eighty".