240321353528197 has 16 divisors (see below), whose sum is σ = 260902679979312. Its totient is φ = 220466207969280.

The previous prime is 240321353528173. The next prime is 240321353528203. The reversal of 240321353528197 is 791825353123042.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1777992895396 + 238543360632801 = 1333414^2 + 15444849^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240321353528197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240321353528897) 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 15 ways as a sum of consecutive naturals, for example, 156966408 + ... + 158490049.

It is an arithmetic number, because the mean of its divisors is an integer number (16306417498707).

Almost surely, 2^{240321353528197} is an apocalyptic number.

It is an amenable number.

240321353528197 is a deficient number, since it is larger than the sum of its proper divisors (20581326451115).

240321353528197 is a wasteful number, since it uses less digits than its factorization.

240321353528197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315457608.

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 240321353528197 in words is "two hundred forty trillion, three hundred twenty-one billion, three hundred fifty-three million, five hundred twenty-eight thousand, one hundred ninety-seven".