245265502645 has 16 divisors (see below), whose sum is σ = 299302562160. Its totient is φ = 192893184000.

The previous prime is 245265502639. The next prime is 245265502667. The reversal of 245265502645 is 546205562542.

It can be written as a sum of positive squares in 8 ways, for example, as 68648716081 + 176616786564 = 262009^2 + 420258^2 .

It is a de Polignac number, because none of the positive numbers 2^k-245265502645 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245265502595 and 245265502604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 363295 + ... + 788995.

It is an arithmetic number, because the mean of its divisors is an integer number (18706410135).

Almost surely, 2^245265502645 is an apocalyptic number.

It is an amenable number.

245265502645 is a deficient number, since it is larger than the sum of its proper divisors (54037059515).

245265502645 is a wasteful number, since it uses less digits than its factorization.

245265502645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427656.

The product of its (nonzero) digits is 2880000, while the sum is 46.

The spelling of 245265502645 in words is "two hundred forty-five billion, two hundred sixty-five million, five hundred two thousand, six hundred forty-five".