20765607303245 has 16 divisors (see below), whose sum is σ = 28501569487488. Its totient is φ = 14227762415040.

The previous prime is 20765607303109. The next prime is 20765607303253. The reversal of 20765607303245 is 54230370656702.

It is a happy number.

It is not a de Polignac number, because 20765607303245 - 2¹⁰ = 20765607302221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20765607303193 and 20765607303202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239772011 + ... + 239858600.

It is an arithmetic number, because the mean of its divisors is an integer number (1781348092968).

Almost surely, 2^{20765607303245} is an apocalyptic number.

It is an amenable number.

20765607303245 is a deficient number, since it is larger than the sum of its proper divisors (7735962184243).

20765607303245 is a wasteful number, since it uses less digits than its factorization.

20765607303245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479631860.

The product of its (nonzero) digits is 6350400, while the sum is 50.

Adding to 20765607303245 its reverse (54230370656702), we get a palindrome (74995977959947).

The spelling of 20765607303245 in words is "twenty trillion, seven hundred sixty-five billion, six hundred seven million, three hundred three thousand, two hundred forty-five".