216206111115106 has 48 divisors (see below), whose sum is σ = 382454015148000. Its totient is φ = 91383639117120.

The previous prime is 216206111115079. The next prime is 216206111115119. The reversal of 216206111115106 is 601511111602612.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95452441 + ... + 97691251.

It is an arithmetic number, because the mean of its divisors is an integer number (7967791982250).

Almost surely, 2^{216206111115106} is an apocalyptic number.

216206111115106 is a deficient number, since it is larger than the sum of its proper divisors (166247904032894).

216206111115106 is a wasteful number, since it uses less digits than its factorization.

216206111115106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252399 (or 2252392 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 34.

Adding to 216206111115106 its reverse (601511111602612), we get a palindrome (817717222717718).

The spelling of 216206111115106 in words is "two hundred sixteen trillion, two hundred six billion, one hundred eleven million, one hundred fifteen thousand, one hundred six".