20206641115 has 4 divisors (see below), whose sum is σ = 24247969344. Its totient is φ = 16165312888.

The previous prime is 20206641047. The next prime is 20206641127. The reversal of 20206641115 is 51114660202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20206641115 - 2⁹ = 20206640603 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2020664107 + ... + 2020664116.

It is an arithmetic number, because the mean of its divisors is an integer number (6061992336).

Almost surely, 2^20206641115 is an apocalyptic number.

20206641115 is a deficient number, since it is larger than the sum of its proper divisors (4041328229).

20206641115 is an equidigital number, since it uses as much as digits as its factorization.

20206641115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4041328228.

The product of its (nonzero) digits is 2880, while the sum is 28.

The spelling of 20206641115 in words is "twenty billion, two hundred six million, six hundred forty-one thousand, one hundred fifteen".