2164284815280 has 640 divisors, whose sum is σ = 8217683558400. Its totient is φ = 460223741952.

The previous prime is 2164284815221. The next prime is 2164284815383. The reversal of 2164284815280 is 825184824612.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 486682017 + ... + 486686463.

It is an arithmetic number, because the mean of its divisors is an integer number (12840130560).

Almost surely, 2^{2164284815280} is an apocalyptic number.

2164284815280 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 2164284815280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4108841779200).

2164284815280 is an abundant number, since it is smaller than the sum of its proper divisors (6053398743120).

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

2164284815280 is a wasteful number, since it uses less digits than its factorization.

2164284815280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4761 (or 4755 counting only the distinct ones).

The product of its (nonzero) digits is 1966080, while the sum is 51.

The spelling of 2164284815280 in words is "two trillion, one hundred sixty-four billion, two hundred eighty-four million, eight hundred fifteen thousand, two hundred eighty".