216607126766 has 16 divisors (see below), whose sum is σ = 328253605056. Its totient is φ = 107193950976.

The previous prime is 216607126711. The next prime is 216607126783. The reversal of 216607126766 is 667621706612.

It is a Curzon number.

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, 1080566 + ... + 1265241.

It is an arithmetic number, because the mean of its divisors is an integer number (20515850316).

Almost surely, 2^216607126766 is an apocalyptic number.

216607126766 is a deficient number, since it is larger than the sum of its proper divisors (111646478290).

216607126766 is a wasteful number, since it uses less digits than its factorization.

216607126766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2346283.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The spelling of 216607126766 in words is "two hundred sixteen billion, six hundred seven million, one hundred twenty-six thousand, seven hundred sixty-six".