20800127445 has 16 divisors (see below), whose sum is σ = 33289426752. Its totient is φ = 11090327040.

The previous prime is 20800127429. The next prime is 20800127497. The reversal of 20800127445 is 54472100802.

It is not a de Polignac number, because 20800127445 - 2⁴ = 20800127429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135676 + ... + 244965.

It is an arithmetic number, because the mean of its divisors is an integer number (2080589172).

Almost surely, 2^20800127445 is an apocalyptic number.

It is an amenable number.

20800127445 is a deficient number, since it is larger than the sum of its proper divisors (12489299307).

20800127445 is a wasteful number, since it uses less digits than its factorization.

20800127445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384292.

The product of its (nonzero) digits is 17920, while the sum is 33.

The spelling of 20800127445 in words is "twenty billion, eight hundred million, one hundred twenty-seven thousand, four hundred forty-five".