216103431654064 has 10 divisors (see below), whose sum is σ = 418700398829780. Its totient is φ = 108051715827024.

The previous prime is 216103431654013. The next prime is 216103431654073. The reversal of 216103431654064 is 460456134301612.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6753232239174 + ... + 6753232239205.

It is an arithmetic number, because the mean of its divisors is an integer number (41870039882978).

Almost surely, 2^{216103431654064} is an apocalyptic number.

It is an amenable number.

216103431654064 is a deficient number, since it is larger than the sum of its proper divisors (202596967175716).

216103431654064 is a wasteful number, since it uses less digits than its factorization.

216103431654064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13506464478387 (or 13506464478381 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 46.

Adding to 216103431654064 its reverse (460456134301612), we get a palindrome (676559565955676).

The spelling of 216103431654064 in words is "two hundred sixteen trillion, one hundred three billion, four hundred thirty-one million, six hundred fifty-four thousand, sixty-four".