245040233015205 has 24 divisors (see below), whose sum is σ = 424737756850680. Its totient is φ = 130687707980160.

The previous prime is 245040233015183. The next prime is 245040233015293. The reversal of 245040233015205 is 502510332040542.

245040233015205 is a `hidden beast` number, since 2 + 4 + 5 + 0 + 402 + 3 + 30 + 15 + 205 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2271986450721 + 242768246564484 = 1507311^2 + 15581022^2 .

It is not a de Polignac number, because 245040233015205 - 2¹¹ = 245040233013157 is a prime.

It is a super-2 number, since 2×245040233015205² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 245040233015205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5879415 + ... + 22905195.

It is an arithmetic number, because the mean of its divisors is an integer number (17697406535445).

Almost surely, 2^{245040233015205} is an apocalyptic number.

It is an amenable number.

245040233015205 is a deficient number, since it is larger than the sum of its proper divisors (179697523835475).

245040233015205 is a wasteful number, since it uses less digits than its factorization.

245040233015205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17345621 (or 17345618 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 245040233015205 its reverse (502510332040542), we get a palindrome (747550565055747).

The spelling of 245040233015205 in words is "two hundred forty-five trillion, forty billion, two hundred thirty-three million, fifteen thousand, two hundred five".