2064668245 has 4 divisors (see below), whose sum is σ = 2477601900. Its totient is φ = 1651734592.

The previous prime is 2064668237. The next prime is 2064668251. The reversal of 2064668245 is 5428664602.

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 1096338321 + 968329924 = 33111^2 + 31118^2 .

It is a cyclic number.

It is not a de Polignac number, because 2064668245 - 2³ = 2064668237 is a prime.

It is a super-2 number, since 2×2064668245² = 8525709923822760050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206466820 + ... + 206466829.

It is an arithmetic number, because the mean of its divisors is an integer number (619400475).

Almost surely, 2^2064668245 is an apocalyptic number.

It is an amenable number.

2064668245 is a deficient number, since it is larger than the sum of its proper divisors (412933655).

2064668245 is an equidigital number, since it uses as much as digits as its factorization.

2064668245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412933654.

The product of its (nonzero) digits is 552960, while the sum is 43.

The square root of 2064668245 is about 45438.6206326733. The cubic root of 2064668245 is about 1273.3567439860.

The spelling of 2064668245 in words is "two billion, sixty-four million, six hundred sixty-eight thousand, two hundred forty-five".