216661050670104 has 64 divisors (see below), whose sum is σ = 601866630384000. Its totient is φ = 72216704800800.

The previous prime is 216661050670087. The next prime is 216661050670147. The reversal of 216661050670104 is 401076050166612.

It is a self number, because there is not a number n which added to its sum of digits gives 216661050670104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21024622 + ... + 29586429.

It is an arithmetic number, because the mean of its divisors is an integer number (9404166099750).

Almost surely, 2^{216661050670104} is an apocalyptic number.

216661050670104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

216661050670104 is an abundant number, since it is smaller than the sum of its proper divisors (385205579713896).

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

216661050670104 is a wasteful number, since it uses less digits than its factorization.

216661050670104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50630885 (or 50630875 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 216661050670104 in words is "two hundred sixteen trillion, six hundred sixty-one billion, fifty million, six hundred seventy thousand, one hundred four".