12453524543220 has 96 divisors (see below), whose sum is σ = 35333336747520. Its totient is φ = 3276852633600.

The previous prime is 12453524543191. The next prime is 12453524543311. The reversal of 12453524543220 is 2234542535421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6768214 + ... + 8409266.

It is an arithmetic number, because the mean of its divisors is an integer number (368055591120).

Almost surely, 2^{12453524543220} is an apocalyptic number.

12453524543220 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 12453524543220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17666668373760).

12453524543220 is an abundant number, since it is smaller than the sum of its proper divisors (22879812204300).

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

12453524543220 is a wasteful number, since it uses less digits than its factorization.

12453524543220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642745 (or 1642743 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 42.

The spelling of 12453524543220 in words is "twelve trillion, four hundred fifty-three billion, five hundred twenty-four million, five hundred forty-three thousand, two hundred twenty".