2178968985016 has 16 divisors (see below), whose sum is σ = 4085688992040. Its totient is φ = 1089451920480.

The previous prime is 2178968984977. The next prime is 2178968985031. The reversal of 2178968985016 is 6105898698712.

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 3 ways as a sum of consecutive naturals, for example, 3786015 + ... + 4323406.

Almost surely, 2^{2178968985016} is an apocalyptic number.

It is an amenable number.

2178968985016 is a deficient number, since it is larger than the sum of its proper divisors (1906720007024).

2178968985016 is a wasteful number, since it uses less digits than its factorization.

2178968985016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8143014 (or 8143010 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 70.

The spelling of 2178968985016 in words is "two trillion, one hundred seventy-eight billion, nine hundred sixty-eight million, nine hundred eighty-five thousand, sixteen".