245623644256 has 48 divisors (see below), whose sum is σ = 511050980160. Its totient is φ = 115884432000.

The previous prime is 245623644221. The next prime is 245623644289. The reversal of 245623644256 is 652446326542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 652146 + ... + 957361.

It is an arithmetic number, because the mean of its divisors is an integer number (10646895420).

Almost surely, 2^245623644256 is an apocalyptic number.

It is an amenable number.

245623644256 is an abundant number, since it is smaller than the sum of its proper divisors (265427335904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245623644256 is a wasteful number, since it uses less digits than its factorization.

245623644256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1609787 (or 1609779 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 49.

The spelling of 245623644256 in words is "two hundred forty-five billion, six hundred twenty-three million, six hundred forty-four thousand, two hundred fifty-six".