2180502663144 has 128 divisors (see below), whose sum is σ = 6031626007680. Its totient is φ = 652616294400.

The previous prime is 2180502663139. The next prime is 2180502663151. The reversal of 2180502663144 is 4413662050812.

It is a junction number, because it is equal to n+sod(n) for n = 2180502663096 and 2180502663105.

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 31 ways as a sum of consecutive naturals, for example, 4057999 + ... + 4563809.

It is an arithmetic number, because the mean of its divisors is an integer number (47122078185).

Almost surely, 2^{2180502663144} is an apocalyptic number.

2180502663144 is a gapful number since it is divisible by the number (24) 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 2180502663144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3015813003840).

2180502663144 is an abundant number, since it is smaller than the sum of its proper divisors (3851123344536).

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

2180502663144 is a wasteful number, since it uses less digits than its factorization.

2180502663144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506211 (or 506207 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 2180502663144 in words is "two trillion, one hundred eighty billion, five hundred two million, six hundred sixty-three thousand, one hundred forty-four".