245265502644 has 36 divisors (see below), whose sum is σ = 619994531520. Its totient is φ = 81752814480.

The previous prime is 245265502639. The next prime is 245265502667. The reversal of 245265502644 is 446205562542.

245265502644 is a `hidden beast` number, since 2 + 4 + 52 + 6 + 550 + 2 + 6 + 44 = 666.

245265502644 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 245265502644.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1549237 + ... + 1700195.

It is an arithmetic number, because the mean of its divisors is an integer number (17222070320).

Almost surely, 2^245265502644 is an apocalyptic number.

It is an amenable number.

245265502644 is an abundant number, since it is smaller than the sum of its proper divisors (374729028876).

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

245265502644 is a wasteful number, since it uses less digits than its factorization.

245265502644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196100 (or 196095 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 45.

The spelling of 245265502644 in words is "two hundred forty-five billion, two hundred sixty-five million, five hundred two thousand, six hundred forty-four".