241665664878 has 48 divisors (see below), whose sum is σ = 581987321136. Its totient is φ = 71850280320.

The previous prime is 241665664841. The next prime is 241665664913. The reversal of 241665664878 is 878466566142.

It is a happy number.

241665664878 is a `hidden beast` number, since 2 + 4 + 1 + 66 + 566 + 4 + 8 + 7 + 8 = 666.

241665664878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11503975 + ... + 11524962.

It is an arithmetic number, because the mean of its divisors is an integer number (12124735857).

Almost surely, 2^241665664878 is an apocalyptic number.

241665664878 is an abundant number, since it is smaller than the sum of its proper divisors (340321656258).

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

241665664878 is a wasteful number, since it uses less digits than its factorization.

241665664878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23029009 (or 23029006 counting only the distinct ones).

The product of its digits is 92897280, while the sum is 63.

The spelling of 241665664878 in words is "two hundred forty-one billion, six hundred sixty-five million, six hundred sixty-four thousand, eight hundred seventy-eight".