2180261364800 has 84 divisors (see below), whose sum is σ = 5444877614160. Its totient is φ = 859088017920.

The previous prime is 2180261364781. The next prime is 2180261364803. The reversal of 2180261364800 is 84631620812.

It is not an unprimeable number, because it can be changed into a prime (2180261364803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10061930 + ... + 10276329.

Almost surely, 2^{2180261364800} is an apocalyptic number.

2180261364800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2180261364800 is an abundant number, since it is smaller than the sum of its proper divisors (3264616249360).

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

2180261364800 is a wasteful number, since it uses less digits than its factorization.

2180261364800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20338348 (or 20338333 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The spelling of 2180261364800 in words is "two trillion, one hundred eighty billion, two hundred sixty-one million, three hundred sixty-four thousand, eight hundred".