216775536105 has 16 divisors (see below), whose sum is σ = 346883751360. Its totient is φ = 115599321408.

The previous prime is 216775536097. The next prime is 216775536119. The reversal of 216775536105 is 501635577612.

It is not a de Polignac number, because 216775536105 - 2³ = 216775536097 is a prime.

It is a super-2 number, since 2×216775536105² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 767710 + ... + 1011399.

It is an arithmetic number, because the mean of its divisors is an integer number (21680234460).

Almost surely, 2^216775536105 is an apocalyptic number.

It is an amenable number.

216775536105 is a deficient number, since it is larger than the sum of its proper divisors (130108215255).

216775536105 is a wasteful number, since it uses less digits than its factorization.

216775536105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787240.

The product of its (nonzero) digits is 1323000, while the sum is 48.

The spelling of 216775536105 in words is "two hundred sixteen billion, seven hundred seventy-five million, five hundred thirty-six thousand, one hundred five".