216506671122 has 16 divisors (see below), whose sum is σ = 494872391232. Its totient is φ = 61859048880.

The previous prime is 216506671111. The next prime is 216506671123. The reversal of 216506671122 is 221176605612.

It is not an unprimeable number, because it can be changed into a prime (216506671123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2577460329 + ... + 2577460412.

It is an arithmetic number, because the mean of its divisors is an integer number (30929524452).

Almost surely, 2^216506671122 is an apocalyptic number.

216506671122 is an abundant number, since it is smaller than the sum of its proper divisors (278365720110).

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

216506671122 is a wasteful number, since it uses less digits than its factorization.

216506671122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5154920753.

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 216506671122 in words is "two hundred sixteen billion, five hundred six million, six hundred seventy-one thousand, one hundred twenty-two".