216241561004631 has 16 divisors (see below), whose sum is σ = 292286160176640. Its totient is φ = 142179196674240.

The previous prime is 216241561004629. The next prime is 216241561004653. The reversal of 216241561004631 is 136400165142612.

It is not a de Polignac number, because 216241561004631 - 2¹ = 216241561004629 is a prime.

It is a super-2 number, since 2×216241561004631² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216241561004621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19989775 + ... + 28845696.

It is an arithmetic number, because the mean of its divisors is an integer number (18267885011040).

Almost surely, 2^{216241561004631} is an apocalyptic number.

216241561004631 is a deficient number, since it is larger than the sum of its proper divisors (76044599172009).

216241561004631 is a wasteful number, since it uses less digits than its factorization.

216241561004631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48855766.

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 216241561004631 in words is "two hundred sixteen trillion, two hundred forty-one billion, five hundred sixty-one million, four thousand, six hundred thirty-one".