2066307699 has 4 divisors (see below), whose sum is σ = 2755076936. Its totient is φ = 1377538464.

The previous prime is 2066307689. The next prime is 2066307743. The reversal of 2066307699 is 9967036602.

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

It is not a de Polignac number, because 2066307699 - 2⁵ = 2066307667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2066307689) 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, 344384614 + ... + 344384619.

It is an arithmetic number, because the mean of its divisors is an integer number (688769234).

Almost surely, 2^2066307699 is an apocalyptic number.

2066307699 is a deficient number, since it is larger than the sum of its proper divisors (688769237).

2066307699 is an equidigital number, since it uses as much as digits as its factorization.

2066307699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688769236.

The product of its (nonzero) digits is 734832, while the sum is 48.

The square root of 2066307699 is about 45456.6573672108. The cubic root of 2066307699 is about 1273.6936919838.

The spelling of 2066307699 in words is "two billion, sixty-six million, three hundred seven thousand, six hundred ninety-nine".