20358161703 has 32 divisors (see below), whose sum is σ = 33667265280. Its totient is φ = 12051335520.

The previous prime is 20358161693. The next prime is 20358161711. The reversal of 20358161703 is 30716185302.

20358161703 is a `hidden beast` number, since 2 + 0 + 3 + 581 + 6 + 1 + 70 + 3 = 666.

It is not a de Polignac number, because 20358161703 - 2¹³ = 20358153511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20358161723) 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 31 ways as a sum of consecutive naturals, for example, 784276 + ... + 809817.

It is an arithmetic number, because the mean of its divisors is an integer number (1052102040).

Almost surely, 2^20358161703 is an apocalyptic number.

20358161703 is a deficient number, since it is larger than the sum of its proper divisors (13309103577).

20358161703 is a wasteful number, since it uses less digits than its factorization.

20358161703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594156 (or 1594150 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 20358161703 in words is "twenty billion, three hundred fifty-eight million, one hundred sixty-one thousand, seven hundred three".