20761006703 has 4 divisors (see below), whose sum is σ = 20828632440. Its totient is φ = 20693380968.

The previous prime is 20761006663. The next prime is 20761006711. The reversal of 20761006703 is 30760016702.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30760016702 = 2 ⋅15380008351.

It is a cyclic number.

It is not a de Polignac number, because 20761006703 - 2²⁰ = 20759958127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20761006703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20761006723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33812408 + ... + 33813021.

It is an arithmetic number, because the mean of its divisors is an integer number (5207158110).

Almost surely, 2^20761006703 is an apocalyptic number.

20761006703 is a deficient number, since it is larger than the sum of its proper divisors (67625737).

20761006703 is an equidigital number, since it uses as much as digits as its factorization.

20761006703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67625736.

The product of its (nonzero) digits is 10584, while the sum is 32.

Subtracting 20761006703 from its reverse (30760016702), we obtain a palindrome (9999009999).

The spelling of 20761006703 in words is "twenty billion, seven hundred sixty-one million, six thousand, seven hundred three".