2178061670304 has 192 divisors, whose sum is σ = 6844564137600. Its totient is φ = 669857734656.

The previous prime is 2178061670303. The next prime is 2178061670329. The reversal of 2178061670304 is 4030761608712.

2178061670304 is a `hidden beast` number, since 21 + 7 + 8 + 0 + 616 + 7 + 0 + 3 + 0 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2178061670304.

It is not an unprimeable number, because it can be changed into a prime (2178061670303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24430032 + ... + 24519024.

It is an arithmetic number, because the mean of its divisors is an integer number (35648771550).

Almost surely, 2^{2178061670304} is an apocalyptic number.

2178061670304 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 2178061670304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3422282068800).

2178061670304 is an abundant number, since it is smaller than the sum of its proper divisors (4666502467296).

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

2178061670304 is a wasteful number, since it uses less digits than its factorization.

2178061670304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91204 (or 91190 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 2178061670304 in words is "two trillion, one hundred seventy-eight billion, sixty-one million, six hundred seventy thousand, three hundred four".