12456520560 has 240 divisors, whose sum is σ = 46065801600. Its totient is φ = 2991336960.

The previous prime is 12456520547. The next prime is 12456520561. The reversal of 12456520560 is 6502565421.

12456520560 is a `hidden beast` number, since 1 + 2 + 45 + 6 + 52 + 0 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12456520561) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 840091 + ... + 854789.

It is an arithmetic number, because the mean of its divisors is an integer number (191940840).

Almost surely, 2^12456520560 is an apocalyptic number.

12456520560 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 12456520560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23032900800).

12456520560 is an abundant number, since it is smaller than the sum of its proper divisors (33609281040).

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

12456520560 is a wasteful number, since it uses less digits than its factorization.

12456520560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14836 (or 14827 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 12456520560 in words is "twelve billion, four hundred fifty-six million, five hundred twenty thousand, five hundred sixty".