216768004 has 12 divisors (see below), whose sum is σ = 381616704. Its totient is φ = 107734664.

The previous prime is 216767989. The next prime is 216768043. The reversal of 216768004 is 400867612.

216768004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161584 + ... + 162919.

It is an arithmetic number, because the mean of its divisors is an integer number (31801392).

Almost surely, 2^216768004 is an apocalyptic number.

It is an amenable number.

216768004 is a deficient number, since it is larger than the sum of its proper divisors (164848700).

216768004 is a wasteful number, since it uses less digits than its factorization.

216768004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324674 (or 324672 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 216768004 is about 14723.0432995356. The cubic root of 216768004 is about 600.7102736686.

The spelling of 216768004 in words is "two hundred sixteen million, seven hundred sixty-eight thousand, four".