2163147069440 has 288 divisors, whose sum is σ = 6355479639600. Its totient is φ = 702613094400.

The previous prime is 2163147069427. The next prime is 2163147069449. The reversal of 2163147069440 is 449607413612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163147069449) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9419990 + ... + 9646890.

Almost surely, 2^{2163147069440} is an apocalyptic number.

2163147069440 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 2163147069440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3177739819800).

2163147069440 is an abundant number, since it is smaller than the sum of its proper divisors (4192332570160).

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

2163147069440 is a wasteful number, since it uses less digits than its factorization.

2163147069440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226961 (or 226934 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 47.

The spelling of 2163147069440 in words is "two trillion, one hundred sixty-three billion, one hundred forty-seven million, sixty-nine thousand, four hundred forty".