20617454703 has 16 divisors (see below), whose sum is σ = 28125342720. Its totient is φ = 13428320736.

The previous prime is 20617454657. The next prime is 20617454717. The reversal of 20617454703 is 30745471602.

It is not a de Polignac number, because 20617454703 - 2⁶ = 20617454639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20617454723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52723 + ... + 209796.

It is an arithmetic number, because the mean of its divisors is an integer number (1757833920).

Almost surely, 2^20617454703 is an apocalyptic number.

20617454703 is a deficient number, since it is larger than the sum of its proper divisors (7507888017).

20617454703 is a wasteful number, since it uses less digits than its factorization.

20617454703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263126.

The product of its (nonzero) digits is 141120, while the sum is 39.

The spelling of 20617454703 in words is "twenty billion, six hundred seventeen million, four hundred fifty-four thousand, seven hundred three".