216241561004605 has 64 divisors (see below), whose sum is σ = 275404044681216. Its totient is φ = 162736011648000.

The previous prime is 216241561004591. The next prime is 216241561004621. The reversal of 216241561004605 is 506400165142612.

It is not a de Polignac number, because 216241561004605 - 2⁹ = 216241561004093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4101594645 + ... + 4101647365.

It is an arithmetic number, because the mean of its divisors is an integer number (4303188198144).

Almost surely, 2^{216241561004605} is an apocalyptic number.

It is an amenable number.

216241561004605 is a deficient number, since it is larger than the sum of its proper divisors (59162483676611).

216241561004605 is a wasteful number, since it uses less digits than its factorization.

216241561004605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55738.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 216241561004605 in words is "two hundred sixteen trillion, two hundred forty-one billion, five hundred sixty-one million, four thousand, six hundred five".