20056602405 has 16 divisors (see below), whose sum is σ = 36674930304. Its totient is φ = 9168732480.

The previous prime is 20056602403. The next prime is 20056602427. The reversal of 20056602405 is 50420665002.

It is not a de Polignac number, because 20056602405 - 2¹ = 20056602403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20056602403) 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, 95507526 + ... + 95507735.

It is an arithmetic number, because the mean of its divisors is an integer number (2292183144).

Almost surely, 2^20056602405 is an apocalyptic number.

It is an amenable number.

20056602405 is a deficient number, since it is larger than the sum of its proper divisors (16618327899).

20056602405 is a wasteful number, since it uses less digits than its factorization.

20056602405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191015276.

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 20056602405 in words is "twenty billion, fifty-six million, six hundred two thousand, four hundred five".