12643051061760 has 480 divisors, whose sum is σ = 47788012210752. Its totient is φ = 2842460651520.

The previous prime is 12643051061749. The next prime is 12643051061791. The reversal of 12643051061760 is 6716015034621.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22680139 + ... + 23230901.

Almost surely, 2^{12643051061760} is an apocalyptic number.

12643051061760 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 12643051061760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23894006105376).

12643051061760 is an abundant number, since it is smaller than the sum of its proper divisors (35144961148992).

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

12643051061760 is an equidigital number, since it uses as much as digits as its factorization.

12643051061760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550864 (or 550841 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 12643051061760 in words is "twelve trillion, six hundred forty-three billion, fifty-one million, sixty-one thousand, seven hundred sixty".