2163965235000 has 320 divisors, whose sum is σ = 7143533337600. Its totient is φ = 544974144000.

The previous prime is 2163965234993. The next prime is 2163965235049. The reversal of 2163965235000 is 5325693612.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 27215302 + ... + 27294698.

It is an arithmetic number, because the mean of its divisors is an integer number (22323541680).

Almost surely, 2^{2163965235000} is an apocalyptic number.

2163965235000 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 2163965235000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3571766668800).

2163965235000 is an abundant number, since it is smaller than the sum of its proper divisors (4979568102600).

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

2163965235000 is a wasteful number, since it uses less digits than its factorization.

2163965235000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79528 (or 79509 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 42.

The spelling of 2163965235000 in words is "two trillion, one hundred sixty-three billion, nine hundred sixty-five million, two hundred thirty-five thousand".