216680361126 has 8 divisors (see below), whose sum is σ = 433360722264. Its totient is φ = 72226787040.

The previous prime is 216680361097. The next prime is 216680361143. The reversal of 216680361126 is 621163086612.

It is a sphenic number, since it is the product of 3 distinct primes.

216680361126 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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, 18056696755 + ... + 18056696766.

It is an arithmetic number, because the mean of its divisors is an integer number (54170090283).

Almost surely, 2^216680361126 is an apocalyptic number.

216680361126 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216680361126 is a wasteful number, since it uses less digits than its factorization.

216680361126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36113393526.

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 216680361126 in words is "two hundred sixteen billion, six hundred eighty million, three hundred sixty-one thousand, one hundred twenty-six".