245120403001256 has 128 divisors (see below), whose sum is σ = 491853955536000. Its totient is φ = 114120936652800.

The previous prime is 245120403001247. The next prime is 245120403001283. The reversal of 245120403001256 is 652100304021542.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17407876136 + ... + 17407890216.

It is an arithmetic number, because the mean of its divisors is an integer number (3842609027625).

Almost surely, 2^{245120403001256} is an apocalyptic number.

It is an amenable number.

245120403001256 is an abundant number, since it is smaller than the sum of its proper divisors (246733552534744).

245120403001256 is a wasteful number, since it uses less digits than its factorization.

245120403001256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17883 (or 17879 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 245120403001256 its reverse (652100304021542), we get a palindrome (897220707022798).

The spelling of 245120403001256 in words is "two hundred forty-five trillion, one hundred twenty billion, four hundred three million, one thousand, two hundred fifty-six".