4240556405345 has 16 divisors (see below), whose sum is σ = 5530379851920. Its totient is φ = 3102758555904.

The previous prime is 4240556405341. The next prime is 4240556405357. The reversal of 4240556405345 is 5435046550424.

It can be written as a sum of positive squares in 8 ways, for example, as 314994827536 + 3925561577809 = 561244^2 + 1981303^2 .

It is a cyclic number.

It is not a de Polignac number, because 4240556405345 - 2² = 4240556405341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4240556405345.

It is not an unprimeable number, because it can be changed into a prime (4240556405341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299255894 + ... + 299270063.

It is an arithmetic number, because the mean of its divisors is an integer number (345648740745).

Almost surely, 2^{4240556405345} is an apocalyptic number.

It is an amenable number.

4240556405345 is a deficient number, since it is larger than the sum of its proper divisors (1289823446575).

4240556405345 is a wasteful number, since it uses less digits than its factorization.

4240556405345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598526084.

The product of its (nonzero) digits is 5760000, while the sum is 47.

The spelling of 4240556405345 in words is "four trillion, two hundred forty billion, five hundred fifty-six million, four hundred five thousand, three hundred forty-five".