2143544520000 has 280 divisors, whose sum is σ = 7632222232096. Its totient is φ = 527641344000.

The previous prime is 2143544519971. The next prime is 2143544520043. The reversal of 2143544520000 is 254453412.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 2143544520000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 872967 + ... + 2247033.

Almost surely, 2^{2143544520000} is an apocalyptic number.

2143544520000 is a gapful number since it is divisible by the number (20) 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 2143544520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3816111116048).

2143544520000 is an abundant number, since it is smaller than the sum of its proper divisors (5488677712096).

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

2143544520000 is a wasteful number, since it uses less digits than its factorization.

2143544520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374115 (or 1374090 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 2143544520000 its reverse (254453412), we get a palindrome (2143798973412).

The spelling of 2143544520000 in words is "two trillion, one hundred forty-three billion, five hundred forty-four million, five hundred twenty thousand".