20002666115 has 4 divisors (see below), whose sum is σ = 24003199344. Its totient is φ = 16002132888.

The previous prime is 20002666097. The next prime is 20002666121. The reversal of 20002666115 is 51166620002.

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 20002666115 - 2⁶ = 20002666051 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2000266607 + ... + 2000266616.

It is an arithmetic number, because the mean of its divisors is an integer number (6000799836).

Almost surely, 2^20002666115 is an apocalyptic number.

20002666115 is a deficient number, since it is larger than the sum of its proper divisors (4000533229).

20002666115 is an equidigital number, since it uses as much as digits as its factorization.

20002666115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4000533228.

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 20002666115 in words is "twenty billion, two million, six hundred sixty-six thousand, one hundred fifteen".