1229143432960 has 288 divisors, whose sum is σ = 3249970988544. Its totient is φ = 443351040000.

The previous prime is 1229143432877. The next prime is 1229143432967. The reversal of 1229143432960 is 692343419221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1229143432960.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1229143432967) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68121540 + ... + 68139580.

It is an arithmetic number, because the mean of its divisors is an integer number (11284621488).

Almost surely, 2^{1229143432960} is an apocalyptic number.

1229143432960 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 1229143432960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1624985494272).

1229143432960 is an abundant number, since it is smaller than the sum of its proper divisors (2020827555584).

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

1229143432960 is a wasteful number, since it uses less digits than its factorization.

1229143432960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18211 (or 18197 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 46.

The spelling of 1229143432960 in words is "one trillion, two hundred twenty-nine billion, one hundred forty-three million, four hundred thirty-two thousand, nine hundred sixty".