241564565645 has 8 divisors (see below), whose sum is σ = 312175746456. Its totient is φ = 178386140736.

The previous prime is 241564565639. The next prime is 241564565653. The reversal of 241564565645 is 546565465142.

241564565645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 37927173001 + 203637392644 = 194749^2 + 451262^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 241564565645 - 2²⁸ = 241296130189 is a prime.

It is a super-3 number, since 3×241564565645³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 1858188902 + ... + 1858189031.

It is an arithmetic number, because the mean of its divisors is an integer number (39021968307).

Almost surely, 2^241564565645 is an apocalyptic number.

It is an amenable number.

241564565645 is a deficient number, since it is larger than the sum of its proper divisors (70611180811).

241564565645 is a wasteful number, since it uses less digits than its factorization.

241564565645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3716377951.

The product of its digits is 17280000, while the sum is 53.

The spelling of 241564565645 in words is "two hundred forty-one billion, five hundred sixty-four million, five hundred sixty-five thousand, six hundred forty-five".