20807841107 has 6 divisors (see below), whose sum is σ = 21166497468. Its totient is φ = 20455162412.

The previous prime is 20807841097. The next prime is 20807841113. The reversal of 20807841107 is 70114870802.

It is not a de Polignac number, because 20807841107 - 2²² = 20803646803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20807841157) 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 5 ways as a sum of consecutive naturals, for example, 2985293 + ... + 2992254.

It is an arithmetic number, because the mean of its divisors is an integer number (3527749578).

Almost surely, 2^20807841107 is an apocalyptic number.

20807841107 is a deficient number, since it is larger than the sum of its proper divisors (358656361).

20807841107 is an frugal number, since it uses more digits than its factorization.

20807841107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5977665 (or 5977606 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 38.

The spelling of 20807841107 in words is "twenty billion, eight hundred seven million, eight hundred forty-one thousand, one hundred seven".