216660412643101 has 12 divisors (see below), whose sum is σ = 257395957011648. Its totient is φ = 181757671394712.

The previous prime is 216660412643083. The next prime is 216660412643107. The reversal of 216660412643101 is 101346214066612.

It is not a de Polignac number, because 216660412643101 - 2³⁷ = 216522973689629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216660412643107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47038732531 + ... + 47038737136.

It is an arithmetic number, because the mean of its divisors is an integer number (21449663084304).

Almost surely, 2^{216660412643101} is an apocalyptic number.

It is an amenable number.

216660412643101 is a deficient number, since it is larger than the sum of its proper divisors (40735544368547).

216660412643101 is an equidigital number, since it uses as much as digits as its factorization.

216660412643101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94077469728 (or 94077469721 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 43.

The spelling of 216660412643101 in words is "two hundred sixteen trillion, six hundred sixty billion, four hundred twelve million, six hundred forty-three thousand, one hundred one".