20764446703 has 16 divisors (see below), whose sum is σ = 27879538176. Its totient is φ = 14935465440.

The previous prime is 20764446653. The next prime is 20764446707. The reversal of 20764446703 is 30764446702.

It is not a de Polignac number, because 20764446703 - 2²¹ = 20762349551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20764446703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20764446707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10370851 + ... + 10372852.

It is an arithmetic number, because the mean of its divisors is an integer number (1742471136).

Almost surely, 2^20764446703 is an apocalyptic number.

20764446703 is a deficient number, since it is larger than the sum of its proper divisors (7115091473).

20764446703 is a wasteful number, since it uses less digits than its factorization.

20764446703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20743734.

The product of its (nonzero) digits is 677376, while the sum is 43.

Subtracting 20764446703 from its reverse (30764446702), we obtain a palindrome (9999999999).

The spelling of 20764446703 in words is "twenty billion, seven hundred sixty-four million, four hundred forty-six thousand, seven hundred three".