2066702401 has 4 divisors (see below), whose sum is σ = 2066820052. Its totient is φ = 2066584752.

The previous prime is 2066702383. The next prime is 2066702413. The reversal of 2066702401 is 1042076602.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1169640000 + 897062401 = 34200^2 + 29951^2 .

It is a cyclic number.

It is not a de Polignac number, because 2066702401 - 2¹⁷ = 2066571329 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2066702401.

It is not an unprimeable number, because it can be changed into a prime (2066702431) 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, 26586 + ... + 69571.

It is an arithmetic number, because the mean of its divisors is an integer number (516705013).

Almost surely, 2^2066702401 is an apocalyptic number.

It is an amenable number.

2066702401 is a deficient number, since it is larger than the sum of its proper divisors (117651).

2066702401 is an equidigital number, since it uses as much as digits as its factorization.

2066702401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117650.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 2066702401 is about 45460.9986801874. The cubic root of 2066702401 is about 1273.7747863018.

The spelling of 2066702401 in words is "two billion, sixty-six million, seven hundred two thousand, four hundred one".