216402540223152 has 40 divisors (see below), whose sum is σ = 559041807927664. Its totient is φ = 72133933319424.

The previous prime is 216402540223127. The next prime is 216402540223193. The reversal of 216402540223152 is 251322045204612.

It is a self number, because there is not a number n which added to its sum of digits gives 216402540223152.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6746418 + ... + 21870510.

Almost surely, 2^{216402540223152} is an apocalyptic number.

It is an amenable number.

216402540223152 is an abundant number, since it is smaller than the sum of its proper divisors (342639267704512).

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

216402540223152 is a wasteful number, since it uses less digits than its factorization.

216402540223152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15422197 (or 15422191 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 39.

Adding to 216402540223152 its reverse (251322045204612), we get a palindrome (467724585427764).

The spelling of 216402540223152 in words is "two hundred sixteen trillion, four hundred two billion, five hundred forty million, two hundred twenty-three thousand, one hundred fifty-two".