241557816885 has 64 divisors (see below), whose sum is σ = 491694796800. Its totient is φ = 100387640640.

The previous prime is 241557816859. The next prime is 241557816887. The reversal of 241557816885 is 588618755142.

It is not a de Polignac number, because 241557816885 - 2¹⁶ = 241557751349 is a prime.

It is a super-2 number, since 2×241557816885² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (241557816887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2077497 + ... + 2190686.

It is an arithmetic number, because the mean of its divisors is an integer number (7682731200).

Almost surely, 2^241557816885 is an apocalyptic number.

It is an amenable number.

241557816885 is an abundant number, since it is smaller than the sum of its proper divisors (250136979915).

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

241557816885 is a wasteful number, since it uses less digits than its factorization.

241557816885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4268223 (or 4268209 counting only the distinct ones).

The product of its digits is 21504000, while the sum is 60.

The spelling of 241557816885 in words is "two hundred forty-one billion, five hundred fifty-seven million, eight hundred sixteen thousand, eight hundred eighty-five".