2066702399 has 4 divisors (see below), whose sum is σ = 2067569880. Its totient is φ = 2065834920.

The previous prime is 2066702383. The next prime is 2066702413. The reversal of 2066702399 is 9932076602.

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 2066702399 - 2⁴ = 2066702383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066702999) 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 3 ways as a sum of consecutive naturals, for example, 430157 + ... + 434934.

It is an arithmetic number, because the mean of its divisors is an integer number (516892470).

Almost surely, 2^2066702399 is an apocalyptic number.

2066702399 is a deficient number, since it is larger than the sum of its proper divisors (867481).

2066702399 is an equidigital number, since it uses as much as digits as its factorization.

2066702399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867480.

The product of its (nonzero) digits is 244944, while the sum is 44.

The square root of 2066702399 is about 45460.9986581905. The cubic root of 2066702399 is about 1273.7747858910.

The spelling of 2066702399 in words is "two billion, sixty-six million, seven hundred two thousand, three hundred ninety-nine".