20327555807 has 32 divisors (see below), whose sum is σ = 22496409600. Its totient is φ = 18254066688.

The previous prime is 20327555803. The next prime is 20327555839. The reversal of 20327555807 is 70855572302.

It is not a de Polignac number, because 20327555807 - 2² = 20327555803 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20327555803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41740118 + ... + 41740604.

It is an arithmetic number, because the mean of its divisors is an integer number (703012800).

Almost surely, 2^20327555807 is an apocalyptic number.

20327555807 is a deficient number, since it is larger than the sum of its proper divisors (2168853793).

20327555807 is a wasteful number, since it uses less digits than its factorization.

20327555807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095.

The product of its (nonzero) digits is 588000, while the sum is 44.

The spelling of 20327555807 in words is "twenty billion, three hundred twenty-seven million, five hundred fifty-five thousand, eight hundred seven".