216562042562872 has 32 divisors (see below), whose sum is σ = 407516519466000. Its totient is φ = 107891426649600.

The previous prime is 216562042562849. The next prime is 216562042562893. The reversal of 216562042562872 is 278265240265612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24695754 + ... + 32295577.

Almost surely, 2^{216562042562872} is an apocalyptic number.

It is an amenable number.

216562042562872 is a deficient number, since it is larger than the sum of its proper divisors (190954476903128).

216562042562872 is a wasteful number, since it uses less digits than its factorization.

216562042562872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56993047 (or 56993043 counting only the distinct ones).

The product of its (nonzero) digits is 38707200, while the sum is 58.

The spelling of 216562042562872 in words is "two hundred sixteen trillion, five hundred sixty-two billion, forty-two million, five hundred sixty-two thousand, eight hundred seventy-two".