216406540864059 has 16 divisors (see below), whose sum is σ = 355128682444032. Its totient is φ = 114148505071008.

The previous prime is 216406540863937. The next prime is 216406540864147. The reversal of 216406540864059 is 950468045604612.

It is a happy number.

It is not a de Polignac number, because 216406540864059 - 2⁸ = 216406540863803 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 216406540863993 and 216406540864011.

It is not an unprimeable number, because it can be changed into a prime (216406540865059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 396348975669 + ... + 396348976214.

It is an arithmetic number, because the mean of its divisors is an integer number (22195542652752).

Almost surely, 2^{216406540864059} is an apocalyptic number.

216406540864059 is a deficient number, since it is larger than the sum of its proper divisors (138722141579973).

216406540864059 is a wasteful number, since it uses less digits than its factorization.

216406540864059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792697951906.

The product of its (nonzero) digits is 49766400, while the sum is 60.

The spelling of 216406540864059 in words is "two hundred sixteen trillion, four hundred six billion, five hundred forty million, eight hundred sixty-four thousand, fifty-nine".