20705763241255 has 64 divisors (see below), whose sum is σ = 26658079838208. Its totient is φ = 15384220600320.

The previous prime is 20705763241237. The next prime is 20705763241271. The reversal of 20705763241255 is 55214236750702.

It is not a de Polignac number, because 20705763241255 - 2⁷ = 20705763241127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20705763241199 and 20705763241208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4250821470 + ... + 4250826340.

It is an arithmetic number, because the mean of its divisors is an integer number (416532497472).

Almost surely, 2^{20705763241255} is an apocalyptic number.

20705763241255 is a deficient number, since it is larger than the sum of its proper divisors (5952316596953).

20705763241255 is a wasteful number, since it uses less digits than its factorization.

20705763241255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6616.

The product of its (nonzero) digits is 3528000, while the sum is 49.

Adding to 20705763241255 its reverse (55214236750702), we get a palindrome (75919999991957).

The spelling of 20705763241255 in words is "twenty trillion, seven hundred five billion, seven hundred sixty-three million, two hundred forty-one thousand, two hundred fifty-five".