20063506605 has 8 divisors (see below), whose sum is σ = 32101610592. Its totient is φ = 10700536848.

The previous prime is 20063506553. The next prime is 20063506657. The reversal of 20063506605 is 50660536002.

It is an interprime number because it is at equal distance from previous prime (20063506553) and next prime (20063506657).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20063506605 - 2¹⁴ = 20063490221 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 668783539 + ... + 668783568.

It is an arithmetic number, because the mean of its divisors is an integer number (4012701324).

Almost surely, 2^20063506605 is an apocalyptic number.

It is an amenable number.

20063506605 is a deficient number, since it is larger than the sum of its proper divisors (12038103987).

20063506605 is a wasteful number, since it uses less digits than its factorization.

20063506605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337567115.

The product of its (nonzero) digits is 32400, while the sum is 33.

The spelling of 20063506605 in words is "twenty billion, sixty-three million, five hundred six thousand, six hundred five".