20272245565 has 16 divisors (see below), whose sum is σ = 28579614336. Its totient is φ = 13609339200.

The previous prime is 20272245481. The next prime is 20272245569. The reversal of 20272245565 is 56554227202.

It is a happy number.

It is not a de Polignac number, because 20272245565 - 2¹⁷ = 20272114493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20272245569) 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, 14175681 + ... + 14177110.

It is an arithmetic number, because the mean of its divisors is an integer number (1786225896).

Almost surely, 2^20272245565 is an apocalyptic number.

It is an amenable number.

20272245565 is a deficient number, since it is larger than the sum of its proper divisors (8307368771).

20272245565 is a wasteful number, since it uses less digits than its factorization.

20272245565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28352820.

The product of its (nonzero) digits is 336000, while the sum is 40.

The spelling of 20272245565 in words is "twenty billion, two hundred seventy-two million, two hundred forty-five thousand, five hundred sixty-five".