2000066801 has 4 divisors (see below), whose sum is σ = 2000330100. Its totient is φ = 1999803504.

The previous prime is 2000066743. The next prime is 2000066819. The reversal of 2000066801 is 1086600002.

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

It can be written as a sum of positive squares in 2 ways, for example, as 551122576 + 1448944225 = 23476^2 + 38065^2 .

It is a cyclic number.

It is not a de Polignac number, because 2000066801 - 2⁶ = 2000066737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2000066701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119906 + ... + 135563.

It is an arithmetic number, because the mean of its divisors is an integer number (500082525).

Almost surely, 2^2000066801 is an apocalyptic number.

It is an amenable number.

2000066801 is a deficient number, since it is larger than the sum of its proper divisors (263299).

2000066801 is an equidigital number, since it uses as much as digits as its factorization.

2000066801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263298.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 2000066801 is about 44722.1064016444. The cubic root of 2000066801 is about 1259.9350770697.

Adding to 2000066801 its reverse (1086600002), we get a palindrome (3086666803).

The spelling of 2000066801 in words is "two billion, sixty-six thousand, eight hundred one".