216542638851033 has 16 divisors (see below), whose sum is σ = 315484930190016. Its totient is φ = 131023871634240.

The previous prime is 216542638851013. The next prime is 216542638851083. The reversal of 216542638851033 is 330158836245612.

It is not a de Polignac number, because 216542638851033 - 2²⁶ = 216542571742169 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (216542638851013) 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, 5352262110 + ... + 5352302567.

It is an arithmetic number, because the mean of its divisors is an integer number (19717808136876).

Almost surely, 2^{216542638851033} is an apocalyptic number.

It is an amenable number.

216542638851033 is a deficient number, since it is larger than the sum of its proper divisors (98942291338983).

216542638851033 is a wasteful number, since it uses less digits than its factorization.

216542638851033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10704565304.

The product of its (nonzero) digits is 24883200, while the sum is 57.

The spelling of 216542638851033 in words is "two hundred sixteen trillion, five hundred forty-two billion, six hundred thirty-eight million, eight hundred fifty-one thousand, thirty-three".