216678103705 has 32 divisors (see below), whose sum is σ = 305248296960. Its totient is φ = 144535933440.

The previous prime is 216678103639. The next prime is 216678103709. The reversal of 216678103705 is 507301876612.

216678103705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 216678103705 - 2¹⁷ = 216677972633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216678103709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8494120 + ... + 8519590.

It is an arithmetic number, because the mean of its divisors is an integer number (9539009280).

Almost surely, 2^216678103705 is an apocalyptic number.

It is an amenable number.

216678103705 is a deficient number, since it is larger than the sum of its proper divisors (88570193255).

216678103705 is a wasteful number, since it uses less digits than its factorization.

216678103705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32089.

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 216678103705 in words is "two hundred sixteen billion, six hundred seventy-eight million, one hundred three thousand, seven hundred five".