241555315521 has 16 divisors (see below), whose sum is σ = 365103851840. Its totient is φ = 140825770560.

The previous prime is 241555315493. The next prime is 241555315537. The reversal of 241555315521 is 125513555142.

241555315521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 241555315521 - 2⁶ = 241555315457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 241555315521.

It is not an unprimeable number, because it can be changed into a prime (241555316521) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 162992050 + ... + 162993531.

It is an arithmetic number, because the mean of its divisors is an integer number (22818990740).

Almost surely, 2^241555315521 is an apocalyptic number.

It is an amenable number.

241555315521 is a deficient number, since it is larger than the sum of its proper divisors (123548536319).

241555315521 is a wasteful number, since it uses less digits than its factorization.

241555315521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325985616.

The product of its digits is 150000, while the sum is 39.

The spelling of 241555315521 in words is "two hundred forty-one billion, five hundred fifty-five million, three hundred fifteen thousand, five hundred twenty-one".