20588602073 has 4 divisors (see below), whose sum is σ = 22172340708. Its totient is φ = 19004863440.

The previous prime is 20588602051. The next prime is 20588602091. The reversal of 20588602073 is 37020688502.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12229705744 + 8358896329 = 110588^2 + 91427^2 .

It is a cyclic number.

It is not a de Polignac number, because 20588602073 - 2²⁸ = 20320166617 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 20588602073.

It is not an unprimeable number, because it can be changed into a prime (20588602873) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 791869298 + ... + 791869323.

It is an arithmetic number, because the mean of its divisors is an integer number (5543085177).

Almost surely, 2^20588602073 is an apocalyptic number.

It is an amenable number.

20588602073 is a deficient number, since it is larger than the sum of its proper divisors (1583738635).

20588602073 is a wasteful number, since it uses less digits than its factorization.

20588602073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583738634.

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 20588602073 in words is "twenty billion, five hundred eighty-eight million, six hundred two thousand, seventy-three".